海洋测绘2025，Vol.45Issue(1)：39-43,5.DOI:10.3969/j.issn.1671-3044.2025.01.009
均匀线阵多波束声纳通道一致性现场校准方法
A field calibration method for channel consistency of linear equispaced array multibeam sonar
摘要
Abstract
To achieve accurate calibration of linear equispaced array multi-beam sonar channels in non-laboratory environments,a method was developed.The ideal phase was estimated based on the principle that the phase from a fixed direction signal changes linearly with the element number of linear equispaced array under far-field condition.Initial parameters for phase inconsistency were determined based on deviations between measured and estimated values.Taking advantage of the fact that the measured results on the same seafloor are independent of the device direction,a method for calculating phase residual errors was analyzed.Ultimately,an unbiased estimation formula for phase inconsistency parameters was provided.Simulation was conducted according to the specifications of IBeam8120 sonar,showing results consistent with theoretical predictions.This method can be conducted in no-laboratory,thereby enhancing the convenience of channel consistency calibration.关键词
多波束声纳/通道一致性校准/均匀线阵/现场校准/无偏估计Key words
multi-beam sonar/channel consistency calibration/linear equispaced array/field calibration/unbiased estimation分类
天文与地球科学引用本文复制引用
郑明波,刘玮峰,刘冲,夏天宇,张浩..均匀线阵多波束声纳通道一致性现场校准方法[J].海洋测绘,2025,45(1):39-43,5.基金项目
国家重点研发计划(2021YFB2600704). （2021YFB2600704）
