关键词: 多波束测深系统, 崩岸监测, 采样率, 测深分辨率, 发射角, 最大有效航行速度, 扇面开角

Abstract: The multi-beam technology is extensively applied in bathymetry, which in turn poses higher requirements for the observation accuracy of multi-beam technology. In this paper, the parameters of fine monitoring of bank collapse are designed and studied based on the resolution model of SONIC2024 multi-beam sounding system. The distribution rules of lateral and longitudinal resolutions are obtained respectively. The relations and recommended values of parameters inclusive of sampling rate, emission angle, maximum effective navigation speed, and sector’s opening angle are deduced. It is concluded that the vertical resolution of SONIC2024 sounding system is better than the lateral resolution. The conclusion can be used as the basis for the technical design of key parameters before multi-beam measurement. Finally, the process of designing the parameters is summarized, and some suggestions for setting these parameters in the fine monitoring of bank collapse are put forward.

Key words: multi-beam sounding system, bank collapse survey, sampling rate, sounding resolution, beam angle, maximum effective navigation speed, sector’s opening angle