Electronic Navigation Systems 3 Part 2 pdf
Electronic Navigation Systems 3 Part 2 pdf
... increases.
Table 2. 2 Echo sounder range vs pulse length vs PRF
Depth (metres) Pulse length (ms) PRF (pulses per minute)
5, 10 and 20 0 .25 750
40 0 .38 37 5
100 1.00 150
20 0 2. 00 75
400 and 800 3. 60 42
Depth ... reflected by the seabed.
48 Electronic Navigation Systems
Figure 3. 3 A shipboard installation. (Reproduced courtesy of SAL Jungner Marine.)
20 Electronic Naviga...
Electronic Navigation Systems 3 Part 1 pot
... equipment tests 20 1
6.10 Examples of integrated bridge systems 20 1
6.11 Glossary 22 0
6. 12 Summary 22 2
6. 13 Revision questions 2 23
Chapter 7 Electronic charts 22 4
7.1 Introduction 22 4
7 .2 Electronic ... types 22 7
7 .3 Electronic chart systems 23 4
7.4 Chart accuracy 23 9
7.5 Updating electronic charts 24 2
7.6 Automatic Identification System (AIS) 2 4...
Electronic Navigation Systems 3 Part 3 pps
... courtesy of SAL Junger Marine.)
Figure 3. 27 Electronics unit functional block diagram. (Reproduced courtesy of Litton Marine Systems. )
54 Electronic Navigation Systems
᭹ Ocean currents may introduce ... angle of propagation by the use of
Figure 3. 23 (a) Principle of the alpha transducer array. (b) A 72- element alpha transducer array.
78 Electronic Navigation Systems
When...
Electronic Navigation Systems 3 Part 4 potx
... 1 .2 1 .2 1 .2 1 .2 1 .2 1 .2 1 .3 1 .3 1 .3 1 .3
30 1 .3 1 .2 1 .2 1 .2 1 .2 1 .2 1 .2 1 .2 1 .3 1 .3
25 1 .2 1 .2 1 .2 1 .2 1 .2 1 .3 1 .3 1 .3 1 .2 1 .3 1 .3 1 .3 1 .3
20 1 .2 1 .2 1 .2 1 .2 1 .2 1 .2 1 .2 1 .3 1 .2 1 .2 1 .2 1 .2 1 .3
15 ... 1 .2 1 .2 1 .2 1 .2 1 .2 1 .2 1 .2 1 .2 1 .2 1 .2 1 .2 1 .3 1 .2
10 1 .2 1 .2 1 .2 1...
Electronic Navigation Systems 3 Part 6 pptx
... 01.16 W 30 4.0 27 5
Butt of Lewis 58 .31 N 06.16 W 29 4.0 27 5
Girdle Ness 57.08 N 02. 03 W 31 1.0 27 5
Tory Island 55.16 N 08.15 W 31 3.5 27 5
Flamborough Head 54.07 N 00.05 W 30 2. 5 185
Point Lynas 53. 25 N ... 53. 25 N 04.17 W 30 5.0 185
Nash Point 51 .24 N 03. 33 W 29 9.0 185
North Foreland 51. 23 N 01 .27 E 31 0.5 185
St. Catherine’s 50 .35 N 01.18 W 2 93. 5 185
Liza...
Electronic Navigation Systems 3 Part 7 pptx
... L2 carrier (MHz)
–7 1598.0 625 124 2. 937 5
–6 1598. 625 0 12 43. 3750
–5 1599.1875 12 43. 8 125
–4 1599.7500 124 4 .25 00
↓
+ 13 1609 .31 25 125 1.6875
Expression for channel increment:
L1 = 1598.0 625 + 0.5 625 ... 64.8°
Planes: 6 3
Number of SVs 24 24
Carrier frequency
L1: 1575. 420 MHz 1598. 625 0–1609 .31 25 MHz
L2: 122 7.600 MHz 124 2. 937 5– 125 1.6875 MHz
Code clock rate
C/...
Electronic Navigation Systems 3 Part 9 pps
... 20 02;
1 .2 ships engaged on international voyages constructed before 1 July 20 02;
1 .2. 1 in the case of passenger ships irrespective of size and tankers of all sizes, not later than 1 July
20 03;
1 .2. 2 ... Maritime Centre.)
25 8 Electronic Navigation Systems
Figure 7 .20 Passage plan for a route into Immingham on the River Humber. (Reproduced courtesy
of PC Maritime.)
Elec...
Electronic Navigation Systems 3 Part 10 pps
... tan
–1
V cos (course)
900 cos (latitude) + V sin (course)
Figure 8 .22 Use of vectors in calculating errors
28 8 Electronic Navigation Systems
8.8.1 The stationary element
This is the main supporting ... torque. (Reproduced courtesy of Sperry Ltd.)
The ship’s master compass 27 7
Figure 8.10 Continued
27 2 Electronic Navigation Systems
8.4.1 Bottom-heavy control
Figure 8.8(b) il...
Electronic Navigation Systems 3 Part 11 pot
... board (ADIS) from an RS- 23 2 or RS- 422 interface.
Interface data
Compass interfacing with external peripheral units is done using NMEA 01 83 format along RS- 23 2
and RS- 422 lines. Table 8.1 shows ... control panel
Latitude Automatic from the GPS via RS- 23 2 / 422 in NMEA format $GLL, $GGA
Automatic from digital sources via RS- 23 2 / 422 in NMEA 01 83 format $GLL
Manually via the cont...
Electronic Navigation Systems 3 Part 12 pps
... with an electronic navigator, compass or
speed log equipment: channel A is configured to be an RS- 23 2 interface and channel B an RS- 422 line.
Speed information may be input on the RS- 422 interface ... Litton Marine Systems)
Inputs
Speed log input
Pulsed 20 0 pulse/nautical mile (PPNMI) format (contact closure)
Serial RS- 23 2 (channel A or C) or RS- 422 (channel B) communications in...
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