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最近研制成功的“D&Z—1声参量多频海底测绘系统”,适用于江河湖海区水底表层地形、地质构造的精密探测和水底掩埋物体(如管道、沉船、雷等)的探测。其基本特点是:1.利用声参量阵技术,由一个换能器阵实现高低频(100KHz和10、15、20KHz)声信号的高指向性发射,提高了探测的水平和垂直分辨率;2.对同时接收到的高、低频回波进行处理后以“双迹”或“混合”方式显示在剖面记录上,从而可以估测水底表层的地质属性和浮泥厚度。本文介绍其原理、性能和试验结果。
The recently developed D & Z-1 Acoustic Parametric Multi-frequency Underwater Surveying and Mapping System is suitable for the detection of underwater surface topography and geological structures, as well as the detection of underwater buried objects such as pipelines, shipwrecks and thunder. Its basic features are: 1. Using acoustic parametric array technology, high directivity emission of high and low frequency (100KHz and 10,15,20KHz) acoustic signals is realized by a transducer array, which improves the horizontal and vertical resolution of the detection; 2 The simultaneous processing of high and low frequency echoes received at the same time is displayed on the section record in “double track” or “hybrid” mode to estimate the geological properties of the water bottom surface and the mud thickness. This article describes its principles, performance and test results.