5-1
5.0
OPERATION
In either Pinger or Transponder/Responder mode, the relative bearing and Depression Angle of the
tracked target(s) are determined by measuring the phase differences of the sound waves for each
hydrophone element. The Target Bearing, measured in degrees, is relative to Hydrophone Heading. The
Depression Angle is formed by the intersection of a Horizontal Plane and a line drawn from the Vessel
Reference Point to the target. Once these values are determined, other positioning parameters can be
calculated.
NOTE:
‘Vessel Reference Point’ is the relative point from which all
measurements are calculated. The position of the Vessel Reference Point
is determined by hydrophone offsets entered into the Tracking System,
illustrated in
If no offsets are entered, the hydrophone becomes the Vessel Reference
Point.
illustrates the system’s calculated positioning
parameters.
The slant range is the straight-line distance from the Vessel Reference Point to the target. When a sound
source other than a pinger is used, the travel time of the sound wave between the sound source and the
hydrophone is used to calculate the slant range directly. The Horizontal Range (HR) is the projection of
the slant range on a horizontal plane.
In PINGER mode, (HR) is calculated by:
(where Z is target depth and
β
is Depression Angle)
𝐻𝐻𝐻𝐻
=
𝑍𝑍
𝑚𝑚𝑡𝑡𝑡𝑡
β
Equation 2
Slant range (SR) is calculated by:
(where Z is target depth and
β
Depression Angle)
𝑆𝑆𝐻𝐻
=
𝑍𝑍
𝑠𝑠𝑠𝑠𝑡𝑡
β
Equation 3
In TRANSPONDER or RESPONDER mode, slant range (SR) is calculated from the known speed of sound in
the water column (V), the transponder or responder turnaround time (D) and the measured time (T)
between transmitted pulse and received reply by:
Содержание USBL BROADBAND ACOUSTIC TRACKING SYSTEM
Страница 20: ......
Страница 26: ......
Страница 28: ...SECTION 2 SPECIFICATIONS 2 2 BATS 0018257_REV_A Figure 2 1 BATS USBL Portable System ...
Страница 29: ...2 3 Figure 2 2 Portable BATS Transceiver Figure 2 3 Portable BATS Transceiver Side Panel ...
Страница 33: ...2 7 Figure 2 9 BATS Rack Enclosure Front View CPU Figure 2 10 BATS Rack Enclosure Front View Laptop ...
Страница 44: ...SECTION 2 SPECIFICATIONS 2 18 Figure 2 11 BATS Portable System Mechanical Outline 0020020 ...
Страница 45: ...2 19 Figure 2 12 BATS Desktop System Mechanical Outline 0020022 ...
Страница 46: ...SECTION 2 SPECIFICATIONS 2 20 Figure 2 13 BATS Rackmount System Mechanical Outline 0020017 ...
Страница 52: ...3 6 Figure 3 3 Hydrophone Outline Drawing 0019592 ...
Страница 53: ...3 7 Figure 3 4 Hydrophone MTG Arrangement Page 1 of 2 0020018 ...
Страница 54: ...3 8 Figure 3 5 Pipe Angle Bracket Arrangement Page 2 of 2 0020018 ...
Страница 55: ...3 9 Figure 3 6 Angle Bracket Drawing 007327 ...
Страница 56: ...3 10 Figure 3 7 15m 50ft Deck Cable for Desktop 002936 ...
Страница 57: ...3 11 Figure 3 8 30m 100ft Deck Cable for Desktop 0002935 ...
Страница 58: ...3 12 Figure 3 9 Deck Cable for Portable 0003458 ...
Страница 60: ...3 14 Figure 3 10 Suggested Mounting Arrangement in Machined Shaft Flange OTS 0010007 ...
Страница 61: ...3 15 Figure 3 11 Suggested Hydrophone Shaft Machining Through Hull 0020019 ...
Страница 62: ...3 16 BATS 0018257_REV_A Figure 3 12 Gate Valve Type Installation ...
Страница 65: ...3 19 Figure 3 14 Hydrophone Mounting Diagram ...
Страница 78: ...3 32 BATS 0018257_REV_A Figure 3 23 Sync Interface Connector Data Diagram on Desktop Unit ...
Страница 79: ...3 33 Figure 3 24 Sync Interface Connector Desktop Console 0002566 ...
Страница 80: ...3 34 Figure 3 25 Analog Interface Connector Data Diagram Desktop Console ...
Страница 81: ...3 35 Figure 3 26 Analog Interface Connector Desktop Console 0002984 ...
Страница 82: ...3 36 Figure 3 27 Ethernet Cable 1PPS 0002474 ...
Страница 83: ...3 37 Figure 3 28 BATS Portable AC Cord 0002868 ...
Страница 84: ...3 38 Figure 3 29 BATS Portable COMMS Cable 0014672 ...
Страница 85: ...3 39 Figure 3 30 Portable BATS Synchronization Connector ...
Страница 86: ...3 40 Figure 3 31 BATS Portable Sync Cable 0002567 ...
Страница 87: ...3 41 Figure 3 32 Portable BATS Analog Input Connector Data Diagram ...
Страница 88: ...3 42 Figure 3 33 BATS Portable Analog Connector Assembly Drawing 0002441 ...
Страница 90: ......
Страница 95: ...5 5 Figure 5 3 BATS Block Diagram 1 ...
Страница 96: ...5 6 Figure 5 4 BATS Block Diagram 2 ...
Страница 97: ...5 7 Figure 5 5 Portable BATS Block Diagram 1 ...
Страница 98: ...5 8 Figure 5 6 Portable BATS Block Diagram 2 ...