电讯技术2025，Vol.65Issue(2)：293-301,9.DOI:10.20079/j.issn.1001-893x.231122002
基于原子范数的阵元故障MIMO雷达差分共阵角度估计方法
A Difference Co-array Angle Estimation Method Based on Atomic Norm in MIMO Radar under Antenna Failure
摘要
Abstract
Antenna failure in bistatic multiple-input multiple-output(MIMO)radar will result in the entirely missing of some slices in the third-order measurement tensor,which seriously affects the target angle estimation performance.To solve the problem,a difference co-array angle estimation method based on atomic norm minimization is proposed for MIMO radar under antenna failure.Firstly,the third-order measurement tensor is decomposed by PARAFAC algorithm to obtain the incomplete factor matrices of the transmit array and the receive array.Thereafter,the steering matrix of the transmit and receive difference co-arrays can be formulated respectively by using the factor matrices.The redundancy of difference co-array can be employed to occupy the damaged antennas'positions and obtain the virtual factor matrices of the equivalent virtual transmit array and the receive array.Finally,a low-rank matrix reconstruction model based on atomic norm minimization is established for completing the virtual factor matrices of the transmit array and the receive array,which is expressed as a semi-definite programming(SDP)problem and is solved by alternating direction method of multipliers(ADMM).Simulation results show that the proposed method can effectively reconstruct the missing data of the incomplete factor matrix,and improve the angle estimation of MIMO radar under antenna failure.关键词
双基地MIMO雷达/阵元故障/差分共阵/原子范数/角度估计Key words
bistatic MIMO radar/antenna failure/difference co-array/atomic norm/angle estimation分类
信息技术与安全科学引用本文复制引用
陈金立,张金璨,姚昌华,涂刚毅,李家强..基于原子范数的阵元故障MIMO雷达差分共阵角度估计方法[J].电讯技术,2025,65(2):293-301,9.基金项目
国家自然科学基金资助项目(62071238) （62071238）
江苏省自然科学基金(BK20191399) （BK20191399）
