陈辉,
校松,
倪柳柳,
张佳佳
空军预警学院雷达兵器运用工程重点实验室 ??武汉 ??430019
详细信息
作者简介:倪萌钰:女,1994年生,助教,研究方向为阵列信号处理
陈辉:男,1974年生,教授,研究方向为阵列信号处理
校松:男,1994年生,助教,研究方向为阵列信号处理
倪柳柳:男,1991年生,博士生,研究方向为阵列信号处理
张佳佳:女,1986年生,博士生,研究方向为阵列信号处理
通讯作者:倪萌钰 m15392958916@163.com
中图分类号:TN911.7计量
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被引次数:0
出版历程
收稿日期:2018-01-09
修回日期:2018-06-06
网络出版日期:2018-07-30
刊出日期:2018-10-01
Gain and Phase Calibration Algorithm of Near-field Source Based on Instrumental Sensors
Mengyu NI,,Hui CHEN,
Song XIAO,
Liuliu NI,
Jiajia ZHANG
Key Research Laboratory, Air Force Early Warning Academy, Wuhan 430019, China
摘要
摘要:针对近场源的定位及阵列幅相误差校正问题,该文提出一种基于均匀对称阵列利用辅助阵元矢量重构解耦合的幅相误差校正方法。通过重构虚拟阵列实现距离参数的分离,再通过对虚拟阵列导向矢量的变换实现方位和幅相误差之间的解耦合;最后通过对实阵列导向矢量的变换,实现距离与幅相误差的解耦合,从而实现对近场源的方位角、距离以及阵列的幅相误差系数的级联估计。仿真结果表明所提算法相比现有算法运算量小,方位及距离参数估计精确,幅相误差校正精度高。
关键词:对称阵列/
近场源/
辅助阵元/
矢量重构/
幅相误差校正
Abstract:In order to solve the problem of near-field source localization and array gain-phase error calibration, a method of gain-phase error calibration is proposed based on uniform array symmetry. The distance parameter is separated by reconstructing the virtual array, and then the decoupling between azimuth and error is realized by transforming the steering vector of the virtual array. Through the transformation of the real array steering vector, the decoupling between the distance and the gain-phase error is realized, and the cascade estimation of the azimuth and distance of the near-field source and the gain-phase error coefficient of the array is achieved. The simulation results show that compared with the exist algorithms, the proposed algorithm has less computational complexity, more accurate azimuth and distance parameters estimation, and higher accuracy of gain and phase error calibration.
Key words:Symmetrical array/
Near-field/
Instrumental sensors/
Vector reconstruction/
Gain and phase error calibration
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