Dam & Safety ›› 2017, Vol. 0 ›› Issue (6): 69-73.

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Influence of sound speed on accuracy of multi-beam calibration

ZHENG Jian   

  1. Zhejiang Huadong Surveying, Mapping and Geoinformation Co., Ltd.
  • Received:2017-08-28 Revised:2017-09-15 Online:2017-12-08 Published:2017-12-08

声速对多波束校准精度影响分析

郑 建   

  1. 浙江华东测绘地理信息有限公司,浙江 杭州,310014
  • 作者简介:郑 建(1978- ),男,浙江武义人,高级工程师,主要从事工程测绘工作。

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

摘要: 多波束校准是多波束测量过程中最重要的步骤之一,校准精度在很大程度上影响着多波束测深数据的质量。通过分析表面声速与声速剖面测量误差对多波束姿态校准的影响,得出声速对横摇偏差、纵摇偏差、艏向偏差校准精度的影响规律。

关键词: 多波束, 表层声速, 声速剖面, 姿态偏差, 多波束校准