Satellite Navigation Method Based on High-Speed Frequency Hopping Signal

被引：3

作者：

Yuan, En ^{[1
]}

Liu, Peng ^{[1
]}

Chen, Weiwei ^{[1
]}

Wang, Rui ^{[1
]}

Xu, Bing ^{[1
]}

Zhang, Wenyu ^{[1
]}

Tang, Yanqin ^{[1
]}

机构：

[1] Army Engn Univ PLA, Command & Control Engn Coll, Nanjing 210007, Peoples R China

来源：

CHINA COMMUNICATIONS | 2023年 / 20卷 / 07期

关键词：

satellite navigation; frequency hopping; ranging; navigation message transmission; TONE PARAMETER-ESTIMATION; GNSS RECEIVERS; INTERFERENCE; PERFORMANCE; MITIGATION;

D O I：

10.23919/JCC.2023.00.038

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

Global navigation satellite system has been widely used, but it is vulnerable to jamming. In military satellite communications, frequency hopping (FH) signal is usually used for anti-jamming communications. If the FH signal can be used in satellite navigation, the anti-jamming ability of satellite navigation can be improved. Although a recently proposed time-frequency matrix ranging method (TFMR) can use FH signals to realize pseudorange measurement, it cannot transmit navigation messages using the ranging signal which is crucial for satellite navigation. In this article, we propose dual-tone binary frequency shift keying-based TFMR (DBFSK-TFMR). DBFSK-TFMR designs an extended time-frequency matrix (ETFM) and its generation algorithm, which can use the frequency differences in different dual-tone signals in ETFM to modulate data and eliminate the negative impact of data modulation on pseudorange measurement. Using ETFM, DBFSK-TFMR not only realizes the navigation message transmission but also ensures the precision and unambiguous measurement range of pseudo-range measurement. DBFSK-TFMR can be used as an integrated solution for anti-jamming communication and navigation based on FH signals. Simulation results show that DBFSK-TFMR has almost the same ranging performance as TFMR.

引用

页码：321 / 337

页数：17

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