文章摘要
郑琛瑶,潘泉,董真杰.利用相关峰内插时延估计提高四元阵定位精度[J].声学技术,2012,(5):526~529
利用相关峰内插时延估计提高四元阵定位精度
Improvement of positioning precision of four-element-array by interpolating time-delay estimation in correlation peak
投稿时间:2012-03-20  修订日期:2012-05-02
DOI:10.3969/j.issn1000-3630.2012.05.016
中文关键词: 超短基线  四元阵  时延估计  定位精度
英文关键词: ultra-short baseline(USBL)  four-element-array  time-delay estimation  positioning precision
基金项目:
作者单位E-mail
郑琛瑶 西北工业大学自动化学院,西安 710129
广东湛江91388部队93分队,广东湛江,524022 
zhchy@foxmail.com 
潘泉 西北工业大学自动化学院,西安 710129  
董真杰 广东湛江91388部队93分队,广东湛江,524022  
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中文摘要:
      超短基线定位系统具有基阵尺寸小、易于安装等优点,被广泛应用于海洋科学领域.但超短基线作用距离短,远距离定位精度不高.为了改善超短基线的定位精度,在四元阵被动定位结构基础上,采用相关峰内插时延估计算法进行超短基线定位.仿真结果表明该算法能够较好地估计时延差值,有效改进定位精度.
英文摘要:
      Ultra-short baseline system (USBL) is widely used in ocean observation because of its small aperture size and easily being installed. However, the USBL has lower accuracy in long-range operation. In order to increase the accuracy, the algorithm of interpolating time-delay estimation in correlation peak is used for passive positioning four-element-array. The simulation results show that this algorithm can estimate the differential time-delay exactly, the positioning precision is enhanced.
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