卫星导航干扰抑制与信号增强算法研究

王福军; 丁小燕; 谢维华; 徐汉青

doi:DOI:10.13442/j.gnss.1008-9268.2019.04.007

卫星导航干扰抑制与信号增强算法研究

doi: DOI:10.13442/j.gnss.1008-9268.2019.04.007

1.
北京卫星导航中心,北京 100094
2.
河北省科学院地理科学研究所,河北石家庄 050000
3.
31109部队,江苏南京 210009

详细信息

作者简介:
王福军 (1972—),男,博士,高级工程师,研究方向为卫星导航技术．

通讯作者:
王福军 E-mail: fujunwang@163.com

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- 被引次数: 0
出版历程
- 刊出日期: 2019-08-15

Study on anti-jamming and signal enhancement algorithms for satellite navigation

1.
Satellite Navigation Center of Beijing, Beijing 100094,China
2.
Institute of Geographical Sciences, Hebei Academy of Sciences, Shijiazhuang 050000,China
3.
31109 Troops, Nanjing 210009, China

摘要

摘要: 针对功率倒置(PI)抗干扰算法只能抑制干扰而不能增强导航信号问题,采用级联空域抗干扰算法．第一级通过并行基于正交子空间投影的PI算法处理消除强干扰,然后第二级利用卫星导航信号循环平稳性对期望信号进行波束形成,增强卫星导航信号,进一步提高信干噪比．最后通过仿真验证该方法的有效性．
- 空域滤波 /
- 功率倒置(PI) /
- 波束形成 /
- 正交子空间投影 /
- 循环平稳性
Abstract: Aiming at the problem that power inversion (PI) anti-jamming algorithm can only suppress jamming but can not enhance navigation signal, a cascade spatial anti-jamming algorithm is proposed. Firstly, the parallel power inversion algorithm based on orthogonal subspace projection is used to eliminate the strong interference, and then blind beamforming based on cyclostationarity is used to enhance the navigation signal and further improve SINR. Finally, the effectiveness of this method is verified by simulation.
- spatial filtering /
- power inversion (PI) /
- beam-forming /
- orthogonal subspace projection /
- cyclostationarity

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参考文献(10)

[1]	CAPON J. High-resolution frequency-wavenumber spectrum analysis［J］. Proceedings of the IEEE, 1969,57(8):1408-1418.DOI：10.1109/PROC.1969.7278.
[2]	COMPTON R T. The power-inversion adaptive array: concept and performance［J］. IEEE Transactions on Aerospace and Electronic Systems, 1979,15(6):803-814.DOI: 10.1109/TAES.1979.308765.
[3]	RONG Z, PETRUS P, RAPPAPORT T S， et al. Despread-respread multi-target constant modulus array for CDMA systems［J］. IEEE comm Letters, 1997, 1(4): 114-118.DOI: 10.1109/4234.602601.
[4]	SUN W. AMIN M G. A self-coherence anti-jamming GPS receiver［J］. IEEE Transaction on Signal Processing, 2005,53(10):3910-3915.DOI: 10.1109/TSP.2005.855428.
[5]	WU Q, WONG K M. Blind adaptive beamforming for cyclostationary signals［J］. IEEE Transactions on signal processing, 1996, 44(11):2757-2767.DOI: 10.1109/78.542182.
[6]	石斌斌,程翥,钱林杰,等. 基于循环平稳的级联空时GPS 抗干扰方法［J］. 西安电子科技大学学报(自然科学版), 2010,37(4): 743-750.
[7]	孙晓昶, 张忠华, 皇甫堪. 基于循环平稳性的级联空时GPS抗干扰技术［J］. 航天电子对抗,2004(3):4548.
[8]	REED I S, MALLETT J D. BRENNAN L E. Rapid convergence rate in adaptive arrays［J］. IEEE Transactions on Aerospace and Electronic Systems, 1974, 10(6): 853-863.DOI: 10.1109/TEAS.1974.307893.
[9]	李利军, 黄际彦, 刘征. 基于循环相关函数的北斗卫星导航抗干扰算法［J］. 全球定位系统, 2017, 42(3):42-47.
[10]	马骏. GNSS 导航接收机设计及抗干扰研究［D］. 北京:北京邮电大学, 2017.