Method for detecting and regulating sea survey line net systematical error
A system error and adjustment method technology, which is applied in surveying, mapping and navigation, measuring devices, open-air water source surveying, etc., can solve the problems that the calculation method has not yet been resolved, it is difficult to meet the application requirements of high-precision marine space information, and the efficiency is low.
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[0040] The present invention will be described in detail below in conjunction with specific examples, but is not limited to the specific examples.
[0041] Example of ocean bathymetry
[0042] On July 1, 2007, a grid test was carried out in a sea area in the North Sea of China using conventional survey methods.
[0043] ◆There are 12 main measurement lines and 11 inspection lines. The main measurement lines and inspection lines are all measured under normal conditions. Light bold lines in Figures 4 and 5, numbered 1 to 11. During normal measurement, the standard sound velocity is 1510m / s, the draft of the transducer is 1.0m, and the speed is 7.5 knots.
[0044] ◆In order to test the influence of sound velocity on the measurement line system error, add three measurement lines as shown in Figure 4 and Figure 5 with black thick lines, numbered 13, 14, 15. The additional three sounding lines are variable sound velocity measurement, the sound velocity is 1490m / s, the draft is ...
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