Low-cost and high-resolution side-scan sonar imaging method

Abstract

In order to overcome the high-cost and low-resolution problems of the conventional side-scan sonar imaging method, a low-cost and high-resolution side-scan sonar imaging method is provided. The method includes: designing a low-cost array that can be used for side-scan sonar imaging; secondly, using the designed low-cost array to perform single-line high-resolution side-scan imaging; finally, continuously moving the side-scan sonar along a forward direction, continuously repeating a transmitting process and a receiving process in step 2 to obtain K single line imaging results, and then splicing the K single line imaging results to obtain a final side-scan sonar imaging result. Compared with the conventional side-scan sonar imaging method, by reasonably arranging the transmitting array and receiving array, the proposed method can significantly reduce the number of receiving array elements, that is, the side-scan sonar imaging resolution is improved while significantly reduce the cost.

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