~ STDmBSI BS EN b1108 2 ENGE 1 9 9 8 m LbZYbbS BRITISH STANDARD 729338 Ob7 m BS EN 61 108 2 1998 IEC 61 108 2 1998 Maritime navigation and radiocommunication equipment and systems Global navigation sa[.]
~ STDmBSI BS E N b1108-2-ENGE 1998 m LbZYbbS 3 Ob7 m BS EN 61108-2:1998 IEC 61108-2:1998 BRITISH STANDARD Maritime navigation and radiocommunication equipment and systems Global navigation satellite systems (GNSS) Part 2: Global navigation satellite systems (GLONASS) - Receiver equipment - Performance standards, methods of testing and required test results * * u1 ````-`-`,,`,,`,`,,` - The European Standard EN 611082:1998has the status of a British Standard ICs 47.020.70 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELEC No reproduction or networking permitted without license from IHS Not for Resale S T D - B S I BS EN b 1 O B - Z - E N G L 9 1bZLibbS 0727337 T T BS EN 61108-2:1998 National foreword This British Standard is the English language version of EN 611082:1998 It is identical with iEC 611082 1998 The üK participation in its preparation was entrusted to Technical Committee EPU80, Marine navigation and radiocommunication equipment and systems,which has the responsibilityto: - aid enquirers to understand the text, - present to the responsible intemationavEuropean committee any enquiries on the interpretation, or proposais for change, and keep the UK interests informed - monitor related international and European developments and promulgate them in the UK A list of organizationsrepresented on this committee can be obtained on request to its secretary From 1January 1997, ali IEC publications have the number 60000 added to the old number For instance, IEC 27-1 has been renumbered as IEC 60027-1 For a period of time during the change over from one numbering system to the other, publications may contain identifiers from both syst~ms Cross-references Attention is drawn to the fact that CEN and CENELEC standards normaiiy include an annex which iists normative references to international publications with their corresponding European publications The British Standards which implement these international or European publications may be found in the BSI Standards Catalogue under the section entitled "International Standards Correspondence Index", or by using the "Find" facility of the BSI Standards Electronic Catalogue A British Standard does not purport to include all the necessary provisions of a contract Users of British Standards are responsible for their correct application Compliance with a British Standard does not of itself confer immunity from legal obligations Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages to 19 and a back cover This British Standard, having been prepared under the direction of the Electrotechnical Sector Board, was published under the authoris of the Standards Board and comes into effect on 15 October 1998 Amendments issued since publication ~ Amd No Date ~~~ ~~ ~ Text affected ````-`-`,,`,,`,`,,` - O BSI 1998 ISBN O 680 30409 Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELEC No reproduction or networking permitted without license from IHS Not for Resale S T D - B S I B S E N bL108-2-ENGL 1778 m 1b24bbS 0729340 m EN 61108-2 EUROPEAN STANDARD NORME EUROPEENNE EUROPÄISCHENORM August 9 ````-`-`,,`,,`,`,,` - ICs 47.020.70 English version Maritime navigation and radiocommunication equipment and systems Global navigation satellite systems (GNSS) Part 2: Global navigation satellite system (GLONASS) Receiver equipment Performance standards, methods of testing and required test results (IEC 61 108-2:1998) * * Navigations- und Funkkommunikationsgerate und -Systeme für die Seeschiffahrt Weltweite Navigations-SatellitenSysteme (GNSS) Teil 2: Weltweites NavigationsSatellitensystem (GLONASS) Empfangsanlagen - Leistungsanforderungen, Prüfverfahren und geforderte Prüf ergebnisse (IEC 61 108-211998) Matériels et systèmes de navigation et de radiocommunication maritimes Système mondial de navigation par satellite (GNSS) Partie 2: Système de navigation par satellite GLONASS - Matériel de réception - Normes de fonctionnement, méthodes d'essai et résultats d'essai exigibles (CE1 61 108-2:1998) CA This European Standard was approved by CENELEC on 1998-08-01 CENELEC members are bound to comply with the CENICENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member This European Standard exists in three official versions (English, French, German) A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions CENELEC members are the national electrotechnicai committees of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom CENELEC European Committee for Eiectrotechnical Standardization Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung - Central Secretariat: rue de Stassart 35, B 1050 Brussels ~~ @ 1998 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members Ref No EN 61108-2:1998 E Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELEC No reproduction or networking permitted without license from IHS Not for Resale Page EN 61108-2:1998 Foreword The text of document 80/179/FDIS, future edition of IEC 1108-2, prepared by IEC TC 80, Maritime navigation and radiocommunication equipment and systems, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61 108-2 on 1998-08-01 The following dates were fixed: - latest date by which the EN has to be implemented a t national level by publication of an identical national standard or by endorsement (dopl 1999-05-01 - latest date by which the national standards conflicting with the EN have to be withdrawn (daw) 200 1-05-0 Annexes designated "normative" are part of the body of the standard In this standard, annex ZA is normative Annex ZA has been added by CENELEC Endorsement notice The text of the International Standard IEC 61 108-21998 was approved by CENELEC as a European Standard without any modification ````-`-`,,`,,`,`,,` - Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELEC No reproduction or networking permitted without license from IHS Not for Resale Page EN 61108-2:1998 CONTENTS P890 Clause Definitions and abbreviations Minimum performance standards 5 4.1 Object ., 4.2 GLONASS receiver equipment 4.3 Performance standards for GLONASS receiver equipment Methods of testing and required test results 10 10 5.1 Test sites 10 5.2 Test sequence 5.3 Standard test signals 10 5.4 Determination of accuracy .i Il Il 5.5 Organisation of test conditions 5.6 Performance tests ., jl 5.7 Performance checks under IEC 60945 conditions 16 Annex ZA Normative references to international publications with their corresponding European publications @ BSI 1998 Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELEC No reproduction or networking permitted without license from IHS Not for Resale 18 ````-`-`,,`,,`,`,,` - Scope 4 Normative references , , S T D - B S I B S EN b L L O ô - - E N G L 9 l b b b 0727343 424 Page EN 61108-2:1998 MARITIME NAVIGATION AND RADIOCOMMUNICATION EQUIPMENT AND SYSTEMS - Part 2: Global navigation satellite system (GLONASS) GLOBAL NAVIGATION SATELLITE SYSTEMS (GNSS) Receiver equipment - Performance standards, methods of testing and required test results Scope This International Standard specifies the minimum performance standards, methods of testing and required test results for GLONASS shipborne receiver equipment, based upon the IMO Resolution MSC.53(66), which use the signals from the Russian Ministry of Defence Global Navigation Satellite System (GLONASS), in order to determine position This receiver standard applies to phases of the voyage in "other waters" as defined in IMO Resolution A.529 All the text of this standard, whose meaning is identical to that in IMO Resolution MSC.53(66) will be printed in italics and the Resolution and paragraph number indicated between brackets The requirements in clause are cross-referenced to the tests in clause and vice versa Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this part of IEC 61 108 At the time of publication, the editions indicated were valid All normative documents are subject to revision, and parties to agreements based on this part of IEC 61108 are encouraged to investigate the possibility of applying the most recent edition of the normative documents indicated below Members of IEC and IS0 maintain registers of currently valid international standards - IEC 60721-3-6:1987, Classification of environmental conditions Part 3: Classification of groups of environmental parameters and their severities - Ship environment IEC 60945: 1996, Maritime navigation and radiocommunication equipment and systems General requirements - Methods of testing and required test results - IEC 61162-1:1995, Maritime navigation and radiocommunication equipment and systems Digital interfaces - Pari 1: Single talker and multiple listeners IMO Resolution A.529: 1983, Accuracy standards for navigation ````-`-`,,`,,`,`,,` - Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELEC No reproduction or networking permitted without license from IHS Not for Resale STD.BS1 BS E N 61108-2-ENGL 1778 IL b b b 0727344 b I Page EN 61108-2:1998 IMO Resolution A.694:1991, General requirements for shipborne radio equipment forming part of the Global maritime distress and safety system (GMDSS) and for electronic navigational aids IMO Resolution A.815: 1995, World-wide radionavigation system ````-`-`,,`,,`,`,,` - IMO Resolution MSC.53(66):1996, Performance standards for shipborne GLONASS receiver equipment ITU-R M.823-2: 1996, Technical characteristics of differential transmissions for global navigation satellite systems (GNSS) from maritime radio beacons in the frequency band 285 kHz-325 kHz (283,5 kHz-315 kHz in Region 1) Global Navigation Satellite System GLONASS - Interface Control Document (ICD) - GLONASS RTCM recommended standards for differential GPSGLONASS: 1996 Definitions and abbreviations For the purposes of this International Standard, all definitions and abbreviations used, are contained in the normative reference of the GLONASS ICD specification 4.1 Minimum performance standards Object (53.6611.3) Receiver equipment for the Global Navigation Satellite System (GLONASS) intended for navigafional purposes on ships with maximum speeds not exceeding 50 kn shall, in addition to the general requirements contained in resolution A.694(7 7), comply with the following minimum performance requirements (53.6611.4) This standard covers the basic requirements of position fixing for navigation purposes only and does not cover other computational facilities which may be in the equipment It is recognized that other data inputs may be provided such as speed and distance measuring equipment (SDME), gyro or other navigational systems including GLONASS differential corrections However, the basic minimum performance standards contained, in this standard, pertain to the use of GLONASS signals for navigational position fixing only Other computational activity, input/output activity or extra display functions shall not degrade the performance of the equipment below the minimum performance standards set out in this standard The receiver shall comply with the provisions of IMO Resolutions A.529, A.815, MSC.53(66), A.694 and IEC 61 162-1 and be tested in accordance with IEC 60945 Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELEC No reproduction or networking permitted without license from IHS Not for Resale ~ STD.BS1 BS E N bLLOô-2-ENGL L b q b b S 0727345 2T7 Page6 EN 61108-2:1998 4.2 (5.6.1) GLONASS receiver equipment 4.2.1 (53.66/2.1) The words "GLONASS receiver equipment" as used in this performance standard includes all the components and units necessary for the system to properly perform its intended function(s) The "equipment" shall include the following minimum facilities: a) antenna capable of receiving GLONASS signals; b) GLONASS receiver and processor; c) means of accessing the computed latitude/longitude position; d) data control and interface; e) position display and, if required other forms of output 4.2.2 The equipment may be supplied in one of several configurations to provide the necessary position information Examples are: - stand-alone receiver with means of accessing computed position via a keyboard with the positional information suitably displayed GLONASS receiver feeding an integrated system with means of access to the computed position via an appropriate interface, and the positional information available to at least one remote location The above examples should not be implied as limiting the scope of future development Performance standards for GLONASS receiver equipment 4.3 4.3.1 (5.6.2) General (53.6613.1.l)The GLONASS receiver equipment shall be capable of receiving and processing the Standard Positioning Service (SPS) signals of system GLONASS and provide position information in latitude and longitude SGS-90 (PZ-90) co-ordinates in degrees, minutes and thousandths of minutes and time of solution referenced to UTC (SU) Means shall be provided to transform the computed position based upon SGS-90 (PZ-90) into WGS-84 or into data compatible with the datum of the navigational chart in use Where this facility exists, the display shall indicate that the co-ordinate conversion is being performed and shall identify the co-ordinate system in which the position is expressed NOTE - The IMO Resolution uses SGS-90 as the GLONACS datum Since the time of the adoption of that Resolution the datum has been changed to PZ-90 It is assumed that the IMO Resolution will be amended accordingly (see also 4.3.2, 5.3, 5.5.2, and 5.6.4.1.1) (53.6613.1.2) The GLONASS receiver equipment shall operate on the Standard Positioning Service (on lettered L frequencies and C code) NOTE - The IMO Resolution MSCSS(66) is as in 53.66/3.1.2 above The Russian Federation prefer the following text T h e GLONACS receiver equipment shall operate on the L1-sub-band frequencies with the standard precision navigation signal" It is assumed that the IMO Resolution will be amended accordingly - 4.3.2 (5.6.3) Equipment output (53.66/3.1.3) The GLONASS receiver equipment shall be provided with at least one output' from which position information can be supplied to other equipment The output of position information based upon SGS-90 (PZ-90) or WGS-84, shall be in accordance with IEC 67 762 NOTE - Sentences for the GLONASS receiver output are detailed in IEC 61 162-1 Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELEC No reproduction or networking permitted without license from IHS Not for Resale ````-`-`,,`,,`,`,,` - 1998 ~~~~~ - STD.BS1 B S E N b1108-2-ENGL 9 D L b b b 7 b 133 = Page EN 61108-2:1998 4.3.3 (5.6.4) Accuracy 4.3.3.1 (53.6613.1.4) The GLONASS receiver equipment shall have static accuracy such that the position of the antenna is determined to 100 m (45 m) (95 %) with horizontal dilution of position (HDOP) (or PDOP I6) 4.3.3.2 (53.66/3.1.5) The GLONASS receiver equipment shall have dynamic accuracy such that the position of the antenna is determined to within an accuracy of 700 m (45 m) (95 %) with HDOP I (or PDOP 16) under the conditions of sea state and ship’s motion likely to be experienced in ships (see IMO Resolution A.694, IEC 60721-3-6 and IEC 60945) NOTE - The IMO Resolution MSCSS(66) is as stated in 4.3.3.1i4.3.3.2 above The Russian Federation now state that the correct figure is 45 m in both cases and this figure will be used for testing purposes It is assumed that the IMO Resolution will be amended accordingly 4.3.4 (5.6.5) Acquisition (53.66/3.1A) The GLONASS receiver equipment shall be capable of selecting automatically the appropriate satellite transmitted signals for determination of the ship’s position with the required accuracy and update rate (53.6613.1.8) The GLONASS receiver equipment shall be capable of acquiring position to the required accuracy, within 30 min, when there is no valid almanac data (53.6613.1.9) The GLONASS receiver equipment shall be capable of acquiring position to the required accuracy, within min, when there is valid almanac data (53.66/3.1.1O) The GLONASS receiver equipment shall be capable of re-acquiring position to the required accuracy, within min, when the GLONASS signals are interrupted for a period of at least 24 h, but there is no loss of power (53.66/3.1.11) l h e GLONASS receiver equipment shall be capable of re-acquiring position to the required accuracy, within min, when subjected to a power interruption of 60 s Acquisition is defined as the processing of GLONASS satellite signals to obtain a position fix within the required accuracies Four conditions of the GLONASS receiver equipment are set out under which the minimum performance standards shall be met Condition a) Initialisation - the equipment has - been transported over large distances (>1 O00 km to c l O00 km) without power or GLONASS signais - not been powered for >7 days - not received GLONASS signals for >7 days ````-`-`,,`,,`,`,,` - Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELEC No reproduction or networking permitted without license from IHS Not for Resale S T D - B S I B S EN bL108-2-ENGL 1778 Lb24bb7 07T Page EN 61108-2:1998 Condition b) Power outage - the equipment under normal operation loses power for at least 24 h Condition c) Interruption of GLONASS signals - under normal operation the GLONASS signals are interrupted for at least 24 h, but there is no loss of power Condition d) No user action other than applying power and providing a clear view from the antenna for the GLONASS signals, shall be necessary, from any of the initial conditions above, in order to achieve the required acquisition time limits in table Table - Acquisition time limits 4.3.5 4.3.5.1 Equipment condition a b C d Acquisition time limits (minutes) 30 5 (5.6.6) Protection Antenna and inpuüoutput connections (53.66/4) Precautions shall be taken to ensure that no permanent damage can result from an accidental short-circuit or grounding of the antenna or any of its input or output connections or any of the GLONASS receiver equipment inputs or outputs for a duration of 4.3.5.2 (5.6.6.2) Electromagnetic compatibility The GLONASS receiver equipment shall comply with the requirements of IEC 60945 concerning precautions to electromagnetic interference and EMC 4.3.6 (5.6.7) Antenna design (53.6612.2) The antenna design shall be suitable for fitting at a position on the ship which ensures a clear view of the satellite constellation 4.3.7 (5.6.8) Sensitivity and dynamic range (53.66/3.1.7) The GLONASS receiver equipment shall be capable of acquiring satellite signals with input signals having carrier levels in the range of -730 dSm to -720 dBm Once the satellite signals have been acquired the equipment shall continue to operate satisfactorily with satellite signals having carrier levels down to -133 düm Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELEC No reproduction or networking permitted without license from IHS Not for Resale ````-`-`,,`,,`,`,,` - Brief interruption of GLONASS signals e.g by passing under a bridge under normal operation the signals are interrupted for 60 s or less - - ~ STD.BS1 BS EN b1108-2-ENGL 9 W l b L t b b 9 Tob Page EN 61108-2:1998 4.3.8 (5.6.9) Effects of specific interfering signals The GLONASS receiver equipment shall meet the following requirements: a) in a normal operating mode, ¡.e switched on and with antenna attached, it is subject to radiation of W/m2 at a frequency of 636,5 MHt for 10 When the unwanted signal is removed and the GLONASS receiver antenna is exposed to the normal GLONASS satellite signals, the GLONASS receiver equipment shall calculate valid position fixes within without further operator intervention NOTE - This is equivalent to exposing the antenna to radiation from an INMARSAT-A or B transmitter at 10 m distance along the bore sight b) In a normal operating mode, ¡.e switched on and with antenna attached, it is subject to radiation consisting of a burst of 1O pulses, each 1,O ps to 1,5 ps long on a duty cycle of 600:l at a frequency lying between 2,9 GHz and 3,l GHz at power density of about 7,5 kW/m? The condition shall be maintained for 10 with the bursts of pulses repeated every s When the unwanted signal is removed and the GLONASS receiver antenna is exposed to the normal GLONASS satellite signals, the receiver shall calculate valid position fixes within without further operator intervention - NOTE This condition is approximately equivalent to exposing the antenna to radiation from a 60 kW 'S' band marine radar operating at a nominal 1,2 p puise width at 600 pulsesls using a m slot antenna rotating at 20 rlmin with the GLONASS antenna placed in the plane of the bore site of the radar antenna at a distance of 10 m from the centre of rotation 4.3.9 (5.6.10) Position update (53.66/3.1.12) The GLONASS receiver equipment shall generate, display and output a new position solution at least once every s (53.66B.1.13) The minimum resolution of position ¡.e latitude and longitude shall be 0,007 4.3.10 (5.6.1 1) Failure warnings and status indications (53.66/5) The equipment shall provide an indication if the position calculated is likely to be outside of the requirements of these performance standards The GLONASS receiver equipment shall provide as a minimum: (53.66/5.1) an indication within s if either a) the specified HDOP has been exceeded; or b) a new position has not been calculated for more than s Under such conditions the last known position and the time of the last valid fix, with explicit indication of this state, so that no ambiguity can exist, shall be output until normal operation is res umed; (53.66/5.2) a warning of loss of position; and (53.66/5.3) differential GLONASS status indication of: a) the receipt of DGLONASS signals; and b) whether DGLONASS corrections are being applied to the indicated ship's position ````-`-`,,`,,`,`,,` - Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELEC No reproduction or networking permitted without license from IHS Not for Resale S T D - B S I B S EN 61108-2-ENGL 1998 b b 07293Liï 9Li2 Page 10 EN 61108-2:1998 4.3.1 (5.6.12) Differential GLONASS input (53.66/3.1.14) The GLONASS receiver equipment shall have the facilities to process and receive differential GLONASS(DGL0NASS) data fed to it in accordance with the standards of Recommendation ITU-R M.823 and an appropriate RTCM standard When a GLONASS receiver is equipped with a differential receiver, performance standards for static and dynamic accuracies (53.66/3.1.4, 3.1.5) shall be 10 m 95 % - NOTE The standard for the differential GLONASS receiver is contained in future IEC 61 108-4 (Global Navigation Part 4: Differential GPS (DGPS) and differential GLONASS (DGLONASS) maritime Satellite Systems (GNSS) radiobeacon receiver equipment Performance standards, methods of testing and required test results) 5.1 - - Methods of testing and required test results Test sites The manufacturer shall, unless otherwise agreed, set up the GLONASS receiver equipment to be tested and ensure that it is operating normally before testing commences 5.2 Test sequence The sequence of tests is not specified Before the commencement of testing the sequence shall be agreed between the test laboratory and the supplier of the equipment Where appropriate, tests against different clauses of this standard may be carried out simultaneously The manufacturer shall provide sufficient technical documentation to permit the GLONASS receiver equipment to be operated correctly Additional data shall be provided to cover specific tests which not form part of the normal user operations for example means to remove the almanac data, for the purpose of testing under 5.6.5 5.3 Standard test signals The aim of the performance tests is to establish that the GLONASS receiver equipment meets the minimum performance standards set out in clause 4, by performing practical tests under various environmental conditions Because of the difficulty of establishing uniformity of performance of GLONASS signal simulators, over a range of simulators which may be provided by test laboratories and the difficulty of uniformly coupling the simulated signals into varying and unknown GLONASS receiver equipment architectures, these tests have been based upon using the actual GLONASS signals Other methods of simulating the test signals may be used, provided that the simulator produces signals which have the same characteristics as the satellites, including receiver noise, had good satellite signal reception been used from geometrically well placed satellites in a normally dynamic constellation A "Performance check" is defined as a shortened version of the static accuracy test described in 5.6.4.1, ¡.e a minimum of 100 position measurements shall be taken over a period of not 10 min, discarding any measurements with HDOP 24 The position of the antenna of the EUT shall not be in error compared with the known position by >45 m (95 %) using GLONASS signals and PZ-90 as the reference datum ````-`-`,,`,,`,`,,` - Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELEC No reproduction or networking permitted without license from IHS Not for Resale S T D m B S I B S E N bLLO8-2-ENGL 9 IL b b b 0727350 b b Page 11 EN 61108-2:1998 5.4 Determination of accuracy In the determination of the accuracy of position being calculated by the GLONASS receiver equipment, note shall be taken of the geometry of the satellites in use The HDOP measurement is an indication of the suitability of the constellation in view for use in receiver equipment testing If the HDOP is 54, the test conditions can be considered as suitable If HDOP is >4 but 16, then results may be unreliable For HDOP >6, testing shall be delayed until better geometry is established The aim of the accuracy tests is to establish that the measurement of position calculated by the EUT under static and dynamic conditions is as good or better than the performance levels set in this minimum performance standard If a simulator is used, the HDOP threshold shall be set at 54 or PDOP 16 5.5 5.5.1 Organisation of test conditions Tasting under ambient conditions All tests shall be carried out at under ambient conditions, which are defined as at temperatures between +10 OC and +35 O C and relative humidity between 20 % and 70 YO For practical purposes, for those parts of the equipment which are exposed to the weather (formerly class X of IEC 60945) e.g antenna, the test conditions shall be within the environmental limits of the exposed class specified in IEC 60945 5.5.2 Static test site The antenna shall be mounted according to the manufacturer’s instructions at a height of between m and 1,5 m above the electrical ground in an area providing clear line of sight to the satellites from zenith through to an angle of +Ei0 above horizontal The position of the antenna shall be known, with reference to PZ-90 to an accuracy of better than 5,O m in (x,y,z) Maximum cable lengths as specified by the manufacturer shall be used during testing All static tests shall utilise actual GLONASS signals 5.6 Performance tests NOTE - The number in brackets is the subclause of the relevant performance requirement 5.6.1 (4.2.1) GLONASS receiver equipment The equipment under test (EUT) shall be checked for composition by inspection of the equipment and the manufacturer’s documentation 5.6.2 (4.3.1) Position output The EUT shall be checked for the form of the position output by inspection of the manufacturer’s documentation Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELEC No reproduction or networking permitted without license from IHS Not for Resale ````-`-`,,`,,`,`,,` - When it is impractical to carry out the test under the conditions stated above, a note to this effect, stating the actual temperature and relative humidity during the tests, shall be added to the test report Page 12 EN 61108-2:1998 5.6.3 (4.3.2) Equipment output The EUT shall be checked for conformity to IEC 61 162-1 by inspection of the manufacturer's documentation and electrical and protocol tests 5.6.4 (4.3.3) Accuracy 5.6.4.1 ````-`-`,,`,,`,`,,` - 5.6.4.1.1 Static GLONASS Position fix measurements shall be taken over a period of not 45 m (95 %), having discarded measurements taken in conditions of HDOP >4 and PDOP >6 5.6.4.1.2 Differential GLONASS Position fix measurements shall be taken once per second over a period of not c2 h The average position of the antenna shall be calculated from these measurements The distribution of the measurements shall not be in error compared with the known horizontal position of the antenna by >10 m (95 %) The horizontal position of the antenna shall be known to within 0,l m in the datum used for the generation of the corrections The corrections shall be provided by an actual DGLONASS broadcast in accordance with ITU-R M.823 5.6.4.2 Angular movement of the antenna The static tests specified in 5.6.4.1.1 and 5.6.4.1.2 shall be repeated with the antenna performing an angular displacement of 122,5" (simulating roll) in a period of about s (see IEC 60721-3-6) during the duration of the test The results shall be as in 5.6.4.1.1 and 5.6.4.1.2 5.6.4.3 5.6.4.3.1 Dynamic GLONASS The tests for dynamic accuracy are a practical interpretation of the conditions set out in IEC 60721-3-6, table V, section e) X-direction (surge) and Y-direction (sway) These are stated as surge m/s* and sway m/s2 for all classes of environment Examples of applying these accelerations are: a) a fully locked and settled EUT travelling in a straight line at 48 kn I2 kn for a minimum of 1,2 which is reduced to O kn in the same straight line in s, shall not indicate a positional offset > 145 m from the final position at rest and the indicated position shall settle to within 120 m of the rest position within 10 s of coming to rest; Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELEC No reproduction or networking permitted without license from IHS Not for Resale ~ ~ ~~ - S T D - B S I B S EN b L L O ô - - E N G L 1778 S b b b 9 437 Page 13 EN 61108-2:1998 a fully locked and settled EUT having travelled at least 100 m at 24 kn I1 kn in a straight line when subjected to smooth deviations either side of the straight line of approximately m at a period of 11 s to 12 s shall remain in lock and follow the mean direction of motion for at least min; c) using a simulator, the simulator characteristics shall accurately represent the received signals required in 5.6.4.3.1 a) and 5.6.4.3.1 b) For all methods above, the rest position shall be established by one of the following methods: 1) by providing a stationary receiver identical to the EUT alongside the rest point and comparing indicated output positions; or 2) by providing the reference inputs from a simulator 5.6.4.3.2 Differential GLONASS The tests for dynamic accuracy are a practical interpretation of the conditions set out in IEC 60721-3-6, table V, section e) X-direction (surge) and Y-direction (sway) These are stated as surge m/s* and sway m/s* for all classes of environment Examples of applying these accelerations are: * a) a fully locked and settled EUT travelling in a straight line at 48 kn kn for a minimum of 1,2 which is reduced to O kn in the same straight line in s, shall not indicate a positional offset > 110 m from the true position at rest and the indicated position shall settle to within 12 m of the rest position indication within 10 s of coming to rest; b) using a simulator, the simulator characteristics shall accurately represent the received signals required in 5.6.4.3.2 a) For the methods above, the actual and rest positions shall be established by one of the following methods: * rJ3 * 1) for method a) above, the rest position indication shall be determined by averaging the 15 consecutive position indications recorded following the 10 the true position at rest shall be measured to an accuracy of m; s settling period and 2) for method b) above, by providing the reference inputs from a simulator within m 5.6.5 5.6.5.1 (4.3.4) Acquisition Condition a) - Initialization The EUT shall be either: a) initialized to a false position at least O00 km and not greater than 10 O00 km from the test position, or b) isolated from a power source and GLONASS signals for >7 days A performance check shall be carried out after the time limit contained in table ````-`-`,,`,,`,`,,` - Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELEC No reproduction or networking permitted without license from IHS Not for Resale Page 14 EN 61108-2:1998 5.6.5.2 Condition b) - Power outage The EUT shall be isolated from the power source for a period within 24 h to 25 h ````-`-`,,`,,`,`,,` - At the end of the period a performance check shall be carried out after the time limit contained in table 5.6.5.3 Condition c) - Interruption of GLONASS signals During normal operation of the EUT, the antenna shall be masked for a period within 24 h to 25 h At the end of the period a performance check shall be carried out after the time limit contained in table 5.6.5.4 Condition d) - Brief interruption of GLONASS signals During normal operation of the EUT, the antenna shall be completely masked for a period of 60 s At the end of this period the mask shall be removed A performance check shall be carried out after the time limit contained in table 5.6.6 5.6.6.1 (4.3.5) Protection (4.3.5.1) Antenna and inpuüoutput connections The antenna input shall be connected to ground for At completion of the test and reset of the EUT, if required, the antenna input/output connections shall be connected normally, and a performance check shall be carried out to ensure that no permanent damage has resulted 5.6.6.2 (4.3.5.2) Electromagnetic compatibility The tests described in IEC 60945 shall be carried out 5.6.7 (4.3.6) Antenna design The antenna of the EUT shall be checked by inspection of the documentation provided by the manufacturer, to confirm that it is suitable for shipborne installation to ensure a clear view of the satellite constellation 5.6.8 5.6.8.1 (4.3.7) Sensitivity and dynamic range Acquisition The received satellite signals shall be monitored by a suitable test receiver These signals shall be attenuated until they are in the range of -125 dBm i dBm A performance check shall be carried out The EUT shall meet the requirements of this check, within this signal range This test may be carried out using a simulator Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELEC No reproduction or networking permitted without license from IHS Not for Resale Page 16 EN 61108-2:1998 5.6.8.2 Tracking The received satellite signals shall be monitored by a suitable test receiver These signals shall be attenuated down to -133 dBm Under these conditions the performance requirements of a performance check shall be met This test may be carried out using a simulator 5.6.9.1 (4.3.8) Effects of specific interfering signals (4.3.8.a)) L Band interference In a normal operating mode, using an appropriate signal source, the EUT shall be subjected to radiation of Wlm2 at a frequency of 636,5 MHz for 10 The signal shall be removed and a performance check shall be carried out 5.6.9.2 (4.3.8.b)) S Band interference In a normal operating mode, using an appropriate signal source, the EUT shall be subjected to radiation consisting of a burst of 10 pulses, each 1,O ps to 1,5 ps long on a duty cycle of 600:l at a frequency in the range of 2,9 GHz to 3,l GHz at power density of approximately 7,5 kW/m2 This condition shall be maintained for 10 with the bursts of pulses repeated every s The signal shall be removed and a performance check shall be carried out 5.6.10 (4.3.9) Position update 5.6.10.1 Resolution The EUT shall be placed upon a platform, moving in approximately a straight line, at a speed of kn kn The position output of the EUT shall be checked at intervals of 10 s, over a period of 10 The output position shall be observed to be updated on each occasion * 5.6.10.2 Update rate The EUT shall be placed upon a platform, moving in approximately a straight line, at a speed of 50 kn f kn The position output of the EUT shall be checked at intervals of s, over a period of 10 The output position shall be observed to be updated on each occasion This test may be carried out by using a simulator 5.6.10.3 Minimum resolution The minimum resolution of position ¡.e latitude and longitude shall be checked by observation during 5.6.10.1 and 5.6.10.2 above 5.6.1 (4.3.10) Failure warnings and status indications The indications and warnings shall be recorded during the performance of all static and dynamic tests They shall be appropriate to the conditions being experienced by the EUT at the time of their display Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELEC No reproduction or networking permitted without license from IHS Not for Resale ````-`-`,,`,,`,`,,` - 5.6.9 Page 16 EN 61108-2:1998 5.6.12 (4.3.11) Differential GLONASS input The manufacturer's documentation shall be inspected to: a) verify that the EUT will correctly process the message protocol of: 1) the RTCM recommended standards for differential GLONASS; or 2) in the case where maritime radiobeacons are used as the means of communication of the differential corrections, the standards contained in ITU-R M.823,and b) confirm that 1) receipt of DGLONASS signals will be indicated; and 2) that the application of DGLONASS signals to the output ship's position is indicated 5.7 5.7.1 Performance checks under IEC 60945 conditions Dry heat (IEC 60945, 8.2) The receiver portion of the EUT shall be maintained at the specified high temperature in an operational condition The antenna, shall be raised to the specified temperature and held at that temperature without power for a period of at least 30 to stabilise The antenna shall then be thermally insulated as far as possible, whilst it is mounted on the test site (see 5.5.2) and connected to the EUT The thermal insulation of the antenna shall then be removed and the tests performed with the surface temperature of the EUT being monitored A performance check shall then be carried out, during which time the temperature of the receiver shall not have changed by >5 OC 5.7.2 Damp heat (IEC 60945, 8.3) The EUT shall be maintained at the specified temperature and humidity in an operational condition The antenna shall then be thermally insulated as far as possible whilst it is mounted on the test site (see 5.5.2)and connected to the EUT The thermal insulation of the antenna shall then be removed and the tests performed ````-`-`,,`,,`,`,,` - A performance check shall be carried out, during which time the temperature of the antenna shall not have changed by >5 OC 5.7.3 Low temperature (IEC 60945, 8.4) The receiver portion of the EUT shall be maintained at the specified low temperature in an operational condition The antenna shall be cooled to the specified temperature and held at that temperature for a period of at least 30 to stabilize The antenna shall then be thermally insulated as far as possible whilst it is mounted on the test site (see 5.5.2)and connected to the EUT The thermal insulation of the antenna shall then be removed and the tests performed A performance check shall then be carried out, during which time the temperature of the antenna shall not have changed by >5 OC 5.7.4 Vibration (IEC 60945, 8.7) The EUT shall be maintained in an operational condition At the end of the tests the EUT shall be taken to the test site and a performance check shall be carried out Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELEC No reproduction or networking permitted without license from IHS Not for Resale ~ ~ STD.BSI B S EN b L L U B - - E N G L 1778 M Lb24bb9 072935b U82 D Page 17 EN 61108-2:1998 ````-`-`,,`,,`,`,,` - 5.7.5 Rain (IEC 60945, 8.8) The antenna of the EUT shall be subjected to the rain test in an operational condition A performance check shall then be carried out 5.7.6 IEC 60945, general All other clauses of IEC 60945 apply, with the exceptions of 8.5 (thermal shock), 8.6 (drop test), and 8.9 (immersion) Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELEC No reproduction or networking permitted without license from IHS Not for Resale STD.BS1 BS E N b L L O ô - - E N G L 9 b b b ỵ 072’7357 T ỵ H Page 18 EN 61108-2:1998 Annex ZA (normative) Normative references to international publications with their corresponding European publications This European Standard incorporates by dated or undated reference, provisions from other publications These normative references are cited at the appropriate places in the text and the publications are listed hereafter For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision For undated references the latest edition of the publication referred to applies (including amendments) NOTE: When an international publicationhas been modified by common modifications, indicated by (mod), the relevant ENIHD applies Publication Year Title - IEC 60721-3-6 1987 Classification of environmental conditions Part 3: Classification of groups of environmental parameters and their severities Section 6: Ship environment EN 60721-3-6” 1993 IEC 60945 1996 Maritime navigation and radiocommunication equipment and systems General requirements - Methods of testing and required test results EN 60945 1997 IEC 61 162-1 1995 Maritime navigation and radiocommunication equipment and systems Digital interfaces Part : Single talker and multiple listeners EN 61 162-1 1996 IMO Resolution A.529 1983 Accuracy standards for navigation IMO Resolution A.694 1991 General requirements for shipborne radio equipment forming part of the Global maritime distress and safety system (GMDSS) and for electronic navigational aids IMO Resolution A.815 1995 Worldwide radionavigation system IMO Resolution MSC.53(66) 1996 Performance standards for chipborne GLONASS receiver equipment 1) EN 60721-3-6 includes A1:1991 to IEC 60721-3-6 Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELEC No reproduction or networking permitted without license from IHS Not for Resale ````-`-`,,`,,`,`,,` - EN/HD