Radio Direction Finding System Based on Polynomial Manifold Interpolation

被引：0
|
作者：
Li S. [1 ,2 ]
Liu Y. [3 ,4 ]
Li X. [1 ]
Yang M. [1 ]
机构：
[1] School of Electronic Information Engineering, Beijing Jiaotong University, Beijing
[2] First Research Institute, the Ministry of Public Security of PRC, Beijing
[3] State Key Laboratory of Rail Traffic Control and Safety, Beijing Jiaotong University, Beijing
[4] Frontiers Science Center for Smart Highspeed Railway System, Beijing Jiaotong University, Beijing
来源：
Binggong Xuebao/Acta Armamentarii | 2023年 / 44卷 / 08期
关键词：
array antenna; direction finding; mutual coupling; polynomial manifold interpolation;
D O I：
10.12382/bgxb.2022.0320
中图分类号：
学科分类号：
摘要：
An anti-mutual coupling radio direction finding system based on the polynomial manifold interpolation algorithm is proposed, which aims to solve the deterioration of DOA estimation performance caused by mutual coupling. Based on the polynomial manifold interpolation DOA estimation algorithm, the system can effectively resist the mutual coupling effect and realize high-precision DF processing under small manifold samples. In the DOA estimation solution of the algorithm, the analytical formula can be obtained by the processing method of multiple precision interval successive approximation search, which avoids exhaustive search in the direction angle domain. On the basis of algorithm theory analysis and simulation, the prototype of the radio direction finding system based on the embedded processor is designed and tested. The test results show that the proposed system can effectively perform DOA estimation in mutual coupling and realize the real-time and reliable direction finding of LTE downlink signals. © 2023 China Ordnance Society. All rights reserved.
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页码：2486 / 2494
页数：8
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