Radio Direction Finding System Based on Polynomial Manifold Interpolation

Si LI; Yinsheng LIU; Xu LI; Mingqiang YANG

doi:10.12382/bgxb.2022.0320

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Radio Direction Finding System Based on Polynomial Manifold Interpolation

更新时间：2025-08-18

- Radio Direction Finding System Based on Polynomial Manifold Interpolation
- Acta Armamentarii Vol. 44, Issue 8, Pages: 2486-2494(2023)
- 作者机构：
  
  1. 北京交通大学电子信息工程学院, 北京 100044
  2. 公安部第一研究所, 北京 100048
  3. 北京交通大学轨道交通控制与安全国家重点实验室, 北京 100044
  4. 北京交通大学智慧高铁系统前沿科学中心, 北京 100044
- 作者简介：
- 基金信息：
- DOI：10.12382/bgxb.2022.0320
  CLC：
- Received：29 April 2022，
  
  Published Online：06 September 2023，
  
  Published：30 August 2023
- 稿件说明：
移动端阅览
Si LI, Yinsheng LIU, Xu LI, et al. Radio Direction Finding System Based on Polynomial Manifold Interpolation[J]. Acta Armamentarii, 2023, 44(8): 2486-2494.
DOI：

Si LI, Yinsheng LIU, Xu LI, et al. Radio Direction Finding System Based on Polynomial Manifold Interpolation[J]. Acta Armamentarii, 2023, 44(8): 2486-2494. DOI： 10.12382/bgxb.2022.0320.

摘要

针对应用阵列天线的测向设备中存在的阵元互耦导致波达方向(DOA)估计性能恶化问题

提出基于多项式流形内插算法的抗互耦无线测向系统设计。该系统基于多项式流形内插DOA估计算法

在有效对抗互耦效应的同时可实现小流形样本下高精度测向处理。算法的DOA估计求解中可由多精度区间逐次逼近搜索的处理方法获得解析式

避免方向角度域的遍历搜索处理。在算法理论分析与仿真验证的基础上

基于嵌入式处理器实现无线测向系统原型设计并进行测试。测试结果表明

所提系统设计可有效对抗测向阵列天线的互耦效应

实现对LTE下行信号的实时可靠测向。

Abstract

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.

关键词

Keywords

references

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