多波束测深系统时延偏差探测及校正方法  

Detection and Calibration Method for Latency Bias of Multi-Beam Echo Sounding System

作　　者：张志伟[1] 暴景阳[1] 肖付民[1] 上飞飞 

机构地区：[1]海军大连舰艇学院海洋测绘系 [2]91650部队

出　　处：《测绘科学技术学报》2015年第6期574-577,共4页Journal of Geomatics Science and Technology

基　　金：国家自然科学基金项目(41074002);国家863计划重点项目(2009AA121402-4)

摘　　要：在利用多波束测深系统进行高精度海底地形测量时,各传感器之间数据采集时间不同步的问题,即存在时延偏差,这将会直接影响多波束测深数据质量,为此提出了一种基于最小二乘原理的多波束测深时延偏差探测及校正方法,给出了时延偏差探测及校正计算模型,设计了时延偏差探测及校正流程,通过实例分析,验证了所提方法的适用性和有效性。When making the high precision bottom topography survey with multi-beam echosounder system, there was a problem that the time spent on data acquisition was not synchronously between each sensor, that is, there existed latency bias, which would affect the quality of the multi-beam data directly. So a detection and calibration method for latency bias of multi-beam echosounder system on the basis of the least squares principle was presented, the calculation model of latency bias was given and the calibration procedure was designed. By instance analysis, the applicability and effectiveness of the method was verified.

关 键 词：多波束测深系统 时延偏差 最小二乘原理 校正方法 中误差 

分 类 号：P229[天文地球—大地测量学与测量工程]