水下地形测量,应用多波束方法实现声波水底全覆盖,并用微机进行数据处理与成图,是当今和未来水深测量的方向。本文介绍一种四波束航道扫床测深仪进行水底全覆盖(可称为条带测量)的作业方法,并对近年来的实用情况和精度分析作一些叙述。 Underwater topographic survey, the application of multi-beam method to achieve the full coverage of the sound wave underwater, and computer data processing and mapping, is the direction of the water depth measurement today and in the future. This paper introduces a method of operation for full coverage of bottom of water (which can be called strip measurement) by a four-beam channel sweeping bed sounder, and gives some descriptions of the practical situation and precision analysis in recent years.