Tolerance Analysis of Array Amplitude-phase Errors on Depth of Nulling of Adaptive Difference Beams
Adaptive beam forming generate null steering at direction of interference to achievespatial filtering,but in practical application amplitude and phase errors among array channels is an unavoidable question,also amplitude and phase errors can have a strong impact on depth of null steering of adaptive beam forming,to solve this problem,this paper presented using adaptive difference beamforming has the characteristic of generate null steering at defined direction to filtering.It has been simulated by computer to compare the depth of null steering of traditional adaptive beam forming and adaptive difference beamforming under the same amplitude and phase errors,the results show that the null steering level,which been generated by adaptive difference beamforming,is subject to smaller error,and the impact on depth of null steering of amplitude error is stronger than phase error,analyze of amplitude error limited of adaptive difference beam generating null steering is also presented.
difference beam amplitude and phase error depth of null steering adaptation
Yang Qiang Dai Chunguang Yao Di
Department of Electronic and Information Engineering Harbin Institute of Technology Harbin,China
国际会议
重庆
英文
201-205
2016-03-20（万方平台首次上网日期，不代表论文的发表时间）