基于信号传播修正的GNSS干扰源质心定位方法

doi:10.12305/j.issn.1001-506X.2021.08.08

系统工程与电子技术 ›› 2021, Vol. 43 ›› Issue (8): 2083-2089.doi: 10.12305/j.issn.1001-506X.2021.08.08

基于信号传播修正的GNSS干扰源质心定位方法

刘睿^1,², 杨志伟¹, 陈奇东^1,^2,*, 廖桂生¹, 甄卫民²

1. 西安电子科技大学雷达信号处理国家重点实验室, 陕西西安 710071
2. 中国电波传播研究所, 山东青岛 266107

收稿日期:2020-09-03 出版日期:2021-07-23 发布日期:2021-08-05
通讯作者: 陈奇东
作者简介:刘睿(1989—), 男, 工程师, 博士研究生, 主要研究方向为电波环境监测、无线电导航|杨志伟(1980—), 男, 副教授, 博士研究生导师, 博士, 主要研究方向为多维阵列信号处理、广域监视和空间目标探测|陈奇东(1980—), 男, 高级工程师, 博士研究生, 主要研究方向为电波环境监测、无线电导航|廖桂生(1963—), 男, 教授, 博士研究生导师, 博士, 主要研究方向为空时二维处理、分布式雷达信号处理和自适应抗干扰|甄卫民(1963—), 男, 研究员, 博士研究生导师, 博士，主要研究方向为空间环境、电磁环境
基金资助:
国家重点研发计划(2018YFB0505100)

Centroid localization method of GNSS jamming source based on signal propagation correction

Rui LIU^1,², Zhiwei YANG¹, Qidong CHEN^1,^2,*, Guisheng LIAO¹, Weimin ZHEN²

1. National Laboratory of Radar Signal Processing, Xidian University, Xi'an 710071, China
2. China Research Institute of Radiowave Propagation, Qingdao 266107, China

Received:2020-09-03 Online:2021-07-23 Published:2021-08-05
Contact: Qidong CHEN

摘要/Abstract

摘要：

针对广泛存在的全球卫星导航系统(global navigation satellite system, GNSS)干扰, 采用基于接收信号强度(received signal strength, RSS)的定位方法时, 存在RSS值提取难度大, 城市环境中不开阔、多径等复杂场景下定位误差大等问题, 提出一种基于载噪比加权和干扰信号传播误差修正的GNSS干扰源质心定位方法。该方法采用GNSS接收机输出的载噪比信息, 并采用神经网络的方法预测干扰信号传播影响因子, 通过质心加权实现GNSS干扰源的定位。实验结果表明, 该方法的定位精度得到显著提升。

关键词: 全球卫星导航系统干扰, 载噪比加权, 传播误差修正, 质心定位

Abstract:

Aiming at the widely existing global navigation satellite system (GNSS) interference, the positioning method based on received signal strength (RSS) is adopted, which has problems such as great difficulty in extracting RSS value, large positioning error in complex scenes such as closed and multipath in urban environment. A centroid localization method of GNSS jamming source based on signal propagation correction is proposed. In this method, the carrier to noise ratio information output by GNSS receiver is used, and the influence factors of interference signal propagation are predicted by the neural network method, and the location of GNSS interference source is realized by centroid weighting. Experimental results show that the positioning accuracy of this method is significantly improved.

Key words: global navigation satellite system (GNSS) interference, carrier noise power density rate weighting, propagation error correction, centroid positioning

中图分类号:

TN971

刘睿, 杨志伟, 陈奇东, 廖桂生, 甄卫民. 基于信号传播修正的GNSS干扰源质心定位方法[J]. 系统工程与电子技术, 2021, 43(8): 2083-2089.

Rui LIU, Zhiwei YANG, Qidong CHEN, Guisheng LIAO, Weimin ZHEN. Centroid localization method of GNSS jamming source based on signal propagation correction[J]. Systems Engineering and Electronics, 2021, 43(8): 2083-2089.

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激活函数组合		R₂
隐层函数	输出层函数	R₂
purelin	purelin	0.867 5
purelin	logsig	0.822 7
purelin	tansig	0.832 9
logsig	purelin	0.978 4
logsig	logsig	0.907 2
logsig	tansig	0.952 3
tansig	purelin	0.965 6
tansig	logsig	0.884 0
tansig	tansig	0.983 1

学习算法	R₂
CGP	0.983 1
LM	0.977 5
BFGS	0.961 4
SCG	0.948 3
RP	0.956 2
CGF	0.954 5

干扰机个数	方法
干扰机个数	文献[7]	文献[8]	本文
12	0.314 7	0.209 8	0.126 0
24	0.200 5	0.133 3	0.078 4
36	0.067 6	0.044 6	0.027 4

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基于信号传播修正的GNSS干扰源质心定位方法

Centroid localization method of GNSS jamming source based on signal propagation correction

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