计算机工程与科学2018，Vol.40Issue(3)：456-463,8.DOI:10.3969/j.issn.1007-130X.2018.03.010
声呐位置误差情况下的运动目标多基地定位方法
A moving object localization algorithm in a multi-static sonar system with sensor location errors
摘要
Abstract
In a multi-static sonar localization system,the sonar positions often include random errors that can seriously affect the target's localization accuracy.To tackle this problem,a moving target location algorithm based on time sum and Doppler frequency measurements is proposed.Firstly,the proposed algorithm reorganizes the nonlinear equations based on time sum and Doppler frequency localization mechanism into pseudo linear equations about target position,velocity and intermediate variables,and the initial moving target position and velocity are obtained by using weighted least-squares estimates.Secondly,the correlation between the position,velocity and the intermediate variables is used to estimate the estimation biases of target position and velocity.Finally,an error correction technique is used to correct the initial target position and velocity estimates.The effectiveness of the proposed algorithm is theoretically analyzed under small measurement noise postulation and the numerical verification is performed by using Monte Carlo simulation.关键词
多基地声呐/声呐位置误差/定位/时间和/多普勒频率Key words
multistatic sonar/sonar position errors/location/time sum/Doppler frequency分类
信息技术与安全科学引用本文复制引用
陈伟伟,王鑫..声呐位置误差情况下的运动目标多基地定位方法[J].计算机工程与科学,2018,40(3):456-463,8.基金项目
国家自然科学基金(61304264) （61304264）
江苏省自然科学基金(BK20140166) （BK20140166）
