多波束与侧扫声纳海底目标探测的比较分析

Multi-beam EchosounderVersus Side Scan ObjectDetection A Comparative Analysis

侧扫声纳是目前常用的海底目标(如沉船、水雷、管线等)探测工具,在测深领域,多波束以全覆盖和高效率证明了它的优越性。由于多波束具有很高的分辨率,目前在工程上已经开始应用多波束进行海底目标物的探测。对多波束和侧扫声纳进行了比较分析,并着重探讨了影响多波束分辨率的各种因素。结果表明:多波束的最大优点在于定位精度高,但其适用范围不如侧扫声纳广泛,尤其受到水深和波束角的限制,多波束和侧扫声纳在探测海底目标时具有很好的互补性,同时应用可以提高目标解译的准确性。

To detect sea floor objects such as wreckage, pipelines and mines, side scan sonar is the most often used acoustic tool. For bathymetry, the Multi-beam Echosounder has proven its superior capabilities by providing full coverage and high efficiency. In engineering, MBES has already been used for object detection. This paper compares MBES and side scan sonar, particularly the influential factors of MBES resolution. Conclusion can be drawn that MBES has a more accurate object position, but it cannot be as widely used as side scan sonar, especially when water depth and beam angle have to be concerned. Also, MBES and side scan sonar can be used together to acquire more details for interpretation.