关键词: 多波束, 表层声速, 声速剖面, 姿态偏差, 多波束校准

Abstract: Multi-beam calibration is one of the most important steps in multi-beam measurement. Calibration accuracy can affect the quality of multi-beam sounding data to a great extent. The influence of measurement error of surface sound speed and sound speed profile on multi-beam attitude calibration is analyzed in this paper. The influence law of sound speed on the accuracy of roll deviation, pitch deviation and heading deviation is obtained.

Key words: multi-beam, surface sound speed, sound speed profile, attitude deviation, multi-beam calibration