Antenna array anti-jamming RF front-end of GPS

Wei Tao; Yang Zufang; Pan Wei; Zheng Jiansheng

doi:10.16157/j.issn.0258-7998.173528

Dianzi Jishu Yingyong (May 2018)

Antenna array anti-jamming RF front-end of GPS

Wei Tao,
Yang Zufang,
Pan Wei,
Zheng Jiansheng

Affiliations

Wei Tao: Electronic Information School，Wuhan University，Wuhan 430072，China
Yang Zufang: Information Engineering College，Wuhan Technology and Business University，Wuhan 430065，China
Pan Wei: GNSS Research Center of Wuhan University，Wuhan 430072，China
Zheng Jiansheng: Electronic Information School，Wuhan University，Wuhan 430072，China

DOI: https://doi.org/10.16157/j.issn.0258-7998.173528
Journal volume & issue: Vol. 44, no. 5
pp. 119 – 123

Abstract

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Global Navigation Satellite System(GNSS) is of great significance for anti-interference research. The signal acquisition of anti-interference technology based on antenna array needs multiplex signals, which is difficult for the general signal channel Radio Frequency(RF) front-end. The system was designed for the GPS anti-jamming RF front-end of four-element antenna array. The system received four channels of GPS signals through the four-element antenna array. After the processing of a low noise amplifier, RF filters ,RF chip of GP2015 and down-conversion, the received GPS signals was transformed into the intermediate frequency signal, which was supplied to the A/D sampling behind. Besides, the sampling data was sent to anti-jamming modules to realize anti-jamming. Device selection for each unit is described in detail. Finally, the RF front-end of the whole circuit was justified. The feasibility of the system is verified by practical application.

Published in Dianzi Jishu Yingyong

ISSN: 0258-7998 (Print)
Publisher: National Computer System Engineering Research Institute of China
Country of publisher: China
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Electronics
Website: http://journal.chinaaet.com/en

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