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

Abstract

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

CLC Number:

TN971

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.

Figures/Tables 16

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References 24

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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

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

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