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GNSS World of China

GNSS World of China

JIN Ruimin, ZHEN Weimin. GNSS interference localization technology based on position information of GNSS receivers[J]. GNSS World of China, 2020, 45(1): 51-55. DOI: DOI:10.13442/j.gnss.1008-9268.2020.01.008
Citation: JIN Ruimin, ZHEN Weimin. GNSS interference localization technology based on position information of GNSS receivers[J]. GNSS World of China, 2020, 45(1): 51-55. DOI: DOI:10.13442/j.gnss.1008-9268.2020.01.008

GNSS interference localization technology based on position information of GNSS receivers

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  • GNSS is widely used at present, but GNSS signals are vulnerable to intentional and unintentional interference because of being extremely weak around the earth's surface and public of the format, which will affect the accuracy of GNSS positioning and timing. It is very important to localize and eliminate the interference source. The common way to localize the interference source is to use the direction finding equipment. However, it will take a long time to localize the interference source when there is no approximate location of the GNSS interference. If the coarse location of interference can be achieved by analyzing the output parameter of general receivers, it can provide the initial reference position and the approximate search range for direction finding equipment. As the GNSS receiver approaches the interference, it loses the position information, but as it is far away from the interference, it gets the position information again. To study the information of position loss and reacquisition of GNSS receivers can realize the interference localization. The simulation results show that the method can realize the localization of GNSS interference source, and provide position reference for further accurate location of interference.
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