A Direct Position Determination Approach for Radio Emitters in Presence of Mutual Coupling
WANG Ding1, ZHANG Rui-jie2, ZHANG Tao3
1. Institute of Information System Engineering, PLA Information Engineering University, Zhengzhou, Henan 450002, China;
2. State key laboratory of mathematical engineering and advanced computing, PLA Information Engineering University, Zhengzhou, Henan 450002, China;
3. Nanjing military region military affairs department, Nanjing, Jiangsu 210018, China
Compared to the conventional two-step localization method,the direct position determination (DPD) methods presented by Weiss and Amar have more advantages,such as high precision,strong resolution capability,no measurements-sources association issue,etc.Based on the idea behind the novel localization mechanism,a new DPD method using the passive measurements made with a moving antenna array is proposed in this paper.Unlike the previous approaches,the proposed DPD method considers the effects of array mutual coupling and can decouple the target's positions and mutual coupling coefficients so that they can be solved separately.In addition,the theoretical estimation variance of the new DPD algorithm is derived in analytical manner based on the matrix eigen-perturbation theory.Finally,simulation results demonstrate the superiority of the proposed algorithm and the effectiveness of the theoretical analysis in this paper.
王鼎, 张瑞杰, 张涛. 一种阵列互耦影响下的目标直接定位算法及其理论性能分析[J]. 电子学报, 2017, 45(5): 1130-1138.
WANG Ding, ZHANG Rui-jie, ZHANG Tao. A Direct Position Determination Approach for Radio Emitters in Presence of Mutual Coupling. Acta Electronica Sinica, 2017, 45(5): 1130-1138.
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2017, Vol. 45 
