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Version 3.0 Rev r000
Date
25-08-2010
Graph 4: Along-track position error caused by 1.0° error in yaw patch test error
11.3
Solving for the Patch Test
Depending on the data collection software that is employed and how it solves for the patch test,
there will be a distinct order that the tests will be solved for, but this does not influence the data
collection for the patch test. In general, latency will be solved before pitch; roll will be solved for
before yaw. It is not uncommon that a larger than expected error in one of the tests will make it
necessary to go back and resolve for all previous values. This can be the case with a large yaw offset,
as this will influence to a greater degree the accuracy of the latency and pitch computations if done
using a slope.
The resultant patch test values are corrections that are entered in the data collection software and
not in the Sonic 2024/2022 software, as the values are used for process data.
-10
-8
-6
-4
-2
0
2
4
6
8
10
-80
-60
-40
-20
0
20
40
60
80
Al
ong
-tr
ac
k Posi
ti
on
Er
ror
in
M
e
tr
es
Angle from Nadir
Position Error with a Heading Error of 1.0°
200 metres
150 metres
100metre
50 metre
25 metres
10 metres
Water Depth
Summary of Contents for 2022
Page 1: ...SONIC 2024 2022 BROADBAND MULTIBEAM ECHOSOUNDERS Operation Manual V3 0 Part No 96000001 ...
Page 2: ...Page 2 of 133 Version 3 0 Rev r000 Date 25 08 2010 Part No 96000001 ...
Page 92: ...Figure 78 Smooth log information copied from real time survey log ...
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Page 125: ...Page 125 of 133 Version 3 0 REV r000 Date 25 08 2010 Figure 94 Sonic 2024 Receive Module ...
