Course angle rotation-based multi-beam side-scan sonar image real-time splicing method
A side-scan sonar and heading angle technology, applied in image enhancement, image data processing, sound wave re-radiation, etc., can solve the problems that the analysis technology cannot be disclosed as a commercial secret, accurate real-time splicing cannot be performed, and the accumulation of errors is large. , to achieve the effect of improving the display effect, reducing the accumulated error, and improving the calculation speed
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[0023] The present invention is described in more detail below in conjunction with accompanying drawing example:
[0024] combine figure 1 , the concrete steps of the real-time splicing method of multi-beam side-scan sonar images based on heading angle rotation in the present invention are as follows:
[0025] The first step is to read the original information of the N channels on the left and right sides of the sonar file, and set the initial position of the stitched image;
[0026] The second step is to remove the water column area in the raw data because the transducer receives underwater noise before the first echo point returns;
[0027] The third step takes the GPS coordinates received by the towfish as the center, and writes the N channel data of the first ping in the original sonar file after removing the water column area as a whole to the canvas, avoiding the burden of calculating the echo points one by one. from the accumulated error, and record the current ping n...
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Abstract
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