an introduction to gmdss1 the global maritime distress and safety system
BÀI GIẢNG THỰC HÀNH THÔNG TIN LIÊN LẠC GMDSS (the global maritime distress and safety system)
... tự thông tin CATEGORY All Ship's INDIVIDUAL Disstres Routine Urgency Disstres Safety Routine Urgency Safety CALL - B3 Phát điện: Tổ Máy Điện & VTĐ Trang 16 the global maritime distress and safety ... ID: Mã trạm bờ cần phát + DATE: Ngày, tháng, năm liên lạc + TIME: Thời gian liên lạc Tổ Máy Điện & VTĐ Trang 27 the global maritime distress and safety system Sau nhập xong thu tục phía góc trái ... OF DISTRESS 1: FIRE/EXPLOSION 2: FLOODING 3: COLLISION 4: GROUNDING Tổ Máy Điện & VTĐ Trang 29 the global maritime distress and safety system 5: LISTING 6: SINKING 7: DISABLE AND ADRIFT 8: ABANDONING...
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Introduction to GPS The Global Positioning System - Part 1 pot
... II-2 13 B-3 Cs II- 21 39 A -1 II-4 19 19 A-5 Cs II-22 35 B-4 Cs II-5 17 17 D-3 Cs II-23 34 D-4 Rb II-8 21 21 E-2 Cs II-24 36 C -1 Cs II-9 15 15 D-5 Cs II-25 33 C-2 Cs II -1 0 23 23 E-5 Cs II-26 40 10 ... · 12 9 13 1 13 2 13 3 13 4 13 5 13 8 13 9 14 0 14 2 14 4 14 6 14 7 14 9 15 0 15 1 Contents xi 11 Other Satellite Navigation Systems 15 5 11 .1 11. 2 11 .3 11 .4 11 .4 GLONASS satellite system ... E-3 Cs II -1 1 24 24 D -1 Cs II-27 30 30 B-2 Cs II -1 2 25 25 A-2 Cs II-28 38 A-3 Rb II -1 4 26 26 F-2 Rb IIR-2 43 13 F-3 Rb Cs II -1 5 27 27 A-4 Cs IIR-3 46 11 D-2 Rb II -1 6 32 F-4 Cs IIR-4 51 20 E-1...
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Introduction to GPS The Global Positioning System - Part 2 docx
... and L2, and the navigation message) However, after the AS activation, the P-code was encrypted to Y-code This means that the receiver cannot output either the P-code or the L2 carrier using the ... its unique 1-week segment of the P-code For example, a GPS satellite with an ID of PRN 20 refers to a GPS satellite that is assigned the twentieth-week segment of the PRN P-code The P-code is designed ... (95% of the time) or better [5] The addition of the C/A-code to L2, although it improves the autonomous GPS accuracy, was found to be insufficient for use in the civil aviation safety-of-life applications...
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Introduction to GPS The Global Positioning System - Part 3 pot
... circles Figure 3. 8 shows the sky plot for Toronto on April 13, 2001, which was 33 0 N 30 30 0 60 W 270 90 E 120 240 210 150 180 S Figure 3. 8 GPS sky plot for Toronto on April 13, 2001 GPS Errors and ... precision of the GPS positioning at the one-sigma (1-s) level To obtain the precision at the 2-s level, sometimes referred to as approximately 95% of the time, we multiply the results by a factor of ... security, the U.S DoD 30 Introduction to GPS implemented the so-called selective availability (SA) on Block II GPS satellites to deny accurate real-time autonomous positioning to unauthorized users...
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Introduction to GPS The Global Positioning System - Part 4 pptx
... version at the time of this writing is the ITRF2000 52 Introduction to GPS 4. 2.2 The WGS 84 and NAD 83 systems The World Geodetic System of 19 84 (WGS 84) is a 3-D, Earth-centered reference system ... from the definition of the x and z axes that the xz-plane contains the mean Greenwich meridian The y-axis is selected to make the coordinate system right-handed (i.e., 90° east of the x-axis, ... the north and south poles) and the equatorial plane of the ellipsoid (see Figure 4. 2 for details) Of particular importance to GPS users is the 3-D geodetic coordinate system In this system, the...
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Introduction to GPS The Global Positioning System - Part 5 ppt
... static surveying, the probability of getting a fixed solution is higher with the latter 5. 5 Stop-and-go GPS surveying Stop-and-go surveying is another carrier-phase-based relative positioning technique ... (i.e., within up to 10 15 km) of a known point 76 Introduction to GPS Base (fixed) Rover (moving) Figure 5. 5 Stop-and-go GPS surveying The survey starts by first determining the initial integer ... 70 Introduction to GPS 5. 1 GPS point positioning GPS point positioning, also known as standalone or autonomous positioning, involves only one GPS receiver That is, one GPS receiver...
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Introduction to GPS The Global Positioning System - Part 6 pdf
... initialization, the rover receiver can move to the points to be surveyed With this method, the receiver uses the ambiguity parameters determined during the initialization to solve for the coordinates of the ... would be enough for the receiver initialization 6. 2 On -the- fly ambiguity resolution On -the- fly (OTF) ambiguity resolution is an advanced technique developed recently to determine the initial integer ... level The larger the uncertainty values and/or the probability level, the larger the size of the confidence region The confidence region takes the shape of an ellipse if the number of the estimated...
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Introduction to GPS The Global Positioning System - Part 7 pot
... real-time DGPS corrections of their WADGPS system [6] The system is based on using the already existing FM radio broadcasts to deliver the DGPS corrections to local users (Figure 7. 4) That is, the ... cost-effective To be useful, the MSK receiver should be interfaced to a differential-ready GPS receiver, which would then output the corrected station coordinates 7. 3 Wide-area DGPS systems Real-time ... needs the system data receiver to receive and decode the DGPS corrections The data receiver must be interfaced to a differential-ready GPS receiver to obtain the corrected position Accuracy of the...
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Introduction to GPS The Global Positioning System - Part 8 ppt
... 21 783 .012543 13.11 988 1 P 29 -1 49 38. 5720 48 -3 401.344352 -2 1449 .87 3237 495.675550 P 30 -1 3949. 689 805 -1 87 38. 175431 -1 287 2.779392 -1 3. 581 379 P 31 -6 009. 989 874 241 08. 310257 86 65.94 384 3 37.012 988 * ... 700.699352 P -3 512 .82 7227 -1 7951.46 187 1 -1 9334.4 082 01 292.906571 P -5 935.494799 -2 4254.527474 88 89.371 588 -0 .341952 P 147 98. 294349 7536.24 789 1 -2 0440.059001 583 .1 584 50 P 186 10 .88 8633 4767 .86 5045 181 73.364660 ... -0 .82 2725 P 14 -1 4521.250452 -7 1 58. 053525 -2 0 986 .923406 -9 7 .89 186 4 P 18 -1 9 581 .5 389 63 -1 7313 .82 57 18 487 7.563537 -4 6.041799 P 19 429.793263 17637.9 982 55 19905.627091 480 .354763 P 20 5114.035928...
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Introduction to GPS The Global Positioning System - Part 9 pdf
... geometry The number and locations of the pseudolites can be GPS GPS Figure 9. 3 GPS/ pseudolite integration GPS Pseudolite GPS 124 Introduction to GPS optimized to ensure the best performance of the system ... Figure 9. 2 GPS/ LRF integration 1 19 120 Introduction to GPS provided that the real-time DGPS corrections can be received Once the processing is done, the user can export the output to the required ... the GPS system to operate normally without losing lock to the GPS satellites With the help of a digital compass, a reflectorless handheld laser, colocated with the GPS receiver, can be used to...
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Introduction to GPS The Global Positioning System - Part 10 pdf
... monitoring bridge deformation As the GPS data collection rate is currently limited to 10 Hz, an INS system may supplement the GPS system, in some cases, to monitor the high-frequency portion of the ... orientation of the drill The designed drill patterns are sent to the onboard computer via radio link, and are then used by the integrated system to GPS Applications 137 guide the drill operator to precisely ... with the help of conventional systems As such, the performance of the integrated system is indeed better than either positioning system alone GPS Applications 147 The integrated positioning system...
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Introduction to GPS The Global Positioning System - Part 11 ppt
... for the P-code and the C/A-code are 5 .11 and 0. 511 Mbps, respectively The GLONASS navigation message is a 50-bps data stream, which provides, among other things, the satellite ephemeris and the ... uses the WGS 84 system, while GLONASS uses the Earth Parameter System 1990 (PZ-90) system The two systems differ by as much as 20m on the Earths surface The transformation parameters between the ... onboard atomic clocks, and the facility to transmit the C/A code on both L1 and L2 carrier frequencies [4] GPS and GLONASS systems may be integrated to improve geometry and positioning accuracy, particularly...
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Introduction to GPS The Global Positioning System - Appendix doc
... System (GNSS-1), 157 Global Positioning System See GPS GLONASS satellite system, 15557 defined, 155 Earth Parameter System 1990, 156 GLONASS-M, 156 172 Introduction to GPS GLONASS satellite system ... [1] The corresponding probability level of the 2drms varies from 95.4% to 98.2% depending on the relative values of the errors in the easting and northing components The ratio of the 2drms to the ... 89 See also Ambiguity-resolution techniques Open-pit mining, 12324 centimeter-level-accuracy guidance, 137 GPS for, 13538 illustrated uses, 137 174 Introduction to GPS Open-pit mining (continued)...
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Introduction to GPS the global positioning system
... Introduction to GPS The Global Positioning System For a complete listing of the Artech House Mobile Communications Series, turn to the back of this book Introduction to GPS The Global Positioning ... and others This fresh navigation data is sent to one of the ground control stations to upload it to the GPS satellites through the S-band link 8 Introduction to GPS Monitoring the GPS system ... not only the GPS users but also the GPS marketing and sales personnel xiii xiv Introduction to GPS Chapter of the book introduces the GPS system and its components Chapter examines the GPS signal...
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An introduction to programming the microchip pic in ccs
... development then comes down to writing the software and debugging the errors Those embarking on a PIC based design have to create all the interfaces to the outside world in the form of input and output ... used to store the program and data An oscillator is required to drive the microprocessor Its function is to clock data and instructions into the CPU, compute the results and then output the information ... to enable the program to be loaded into the microcontroller’s memory which allows it to run without the aid of an ICE They come in all shapes and sizes and costs vary Both the PICSTART PLUS and...
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