电讯技术2018，Vol.58Issue(1)：13-17,5.DOI:10.3969/j.issn.1001-893x.2018.01.003
基于多次观测的机载天线阵列幅相误差自校正方法
A Self-calibration Method for Gain-Phase Errors of Airborne Antenna Array Using Multiple Measurements
摘要
Abstract
The problem of self-calibration for sensor gain-phase errors of airborne antenna array is addressed.The proposed method uses the measurements collected from an airborne antenna array during the movement of airborne platform.Eigen-structure of the measurements is analyzed,based on which,the location of the source and the sensor gains/phases are estimated in sequence.The proposed method is a noniterative technique and applies to the scenario that the position of source is unknown.Meanwhile,the proposed method has no constraint on the trajectory of airborne platform and the geometry configuration of array.Numerical simulations show that the estimations of gain and phase are less than 0.5 dB and 2 degrees respectively when the signal-to-noise ratio(SNR) is bigger than 5 dB,which verifies the effectiveness of the proposed method.关键词
机载相控阵/无源定位/特征分解/幅相误差/自校正Key words
airborne phased array/passive localization/eigen decomposition/gain-phase errors/self-calibration分类
信息技术与安全科学引用本文复制引用
黄秀琼,郝克钢,卢铭迪,樊荣,万群..基于多次观测的机载天线阵列幅相误差自校正方法[J].电讯技术,2018,58(1):13-17,5.基金项目
中央高校基础业务费重点项目(ZYGX2015Z011) （ZYGX2015Z011）
国家自然科学基金资助项目(61771108) （61771108）
