| 基于转换矩阵的GPS相干干扰抑制技术 |
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| 引用本文： | 王李军,赵惠昌,熊刚. 基于转换矩阵的GPS相干干扰抑制技术[J]. 电讯技术, 2005, 45(6): 132-135 |
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| 作者姓名： | 王李军 赵惠昌 熊刚 |
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| 作者单位： | 南京理工大学,电光学院,江苏,南京,210094;南京理工大学,电光学院,江苏,南京,210094;南京理工大学,电光学院,江苏,南京,210094 |
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| 摘 要： | 本文首先采用空间平滑技术消除有用的GPS信号与相干干扰信号之间的相关性,然后构造干扰转换矩阵,从而抑制干扰信号,保留有用信号和噪声。最后根据最大输出信噪比原则,获得最佳波束形成器。仿真分析表明该方法可以有效提高输出信号的信号干扰加噪声比,且对信号的DOA估计不敏感。
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| 关 键 词： | GPS 相干干扰 干扰转换矩阵 空间平滑技术 |
| 文章编号： | 1001-893X（2005）06-0132-04 |
| 收稿时间： | 2004-10-15 |
| 修稿时间： | 2004-10-15 |
Coherent Interference Mitigation Based on the Matrix Transformation in GPS Receivers |
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| WANG Li-jun,ZHAO Hui-chang,XIONG Gang. Coherent Interference Mitigation Based on the Matrix Transformation in GPS Receivers[J]. Telecommunication Engineering, 2005, 45(6): 132-135 |
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| Authors: | WANG Li-jun ZHAO Hui-chang XIONG Gang |
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| Affiliation: | School of Electronic Engineering and Optoelectronic Technology, Nanjing Unirersity of Science and Technology, Nanjing 210094, China |
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| Abstract: | Coherence between signal and interference is firstly removed by spatial smoothing techniques,and then an interference transformation matrix is constructed for suppressing interference signals,while the desired signals and noise are retained.Optimum beamforming is performed based on the matrix transformation data consisting of the desired signals and noise to produce maximum output signal-to-interference-plus-noise ratio(SINR).Numerical results demonstrate the proposed method can effectively improve output SINR and is insensitive to DOA estimation of the signals. |
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| Keywords: | GPS |
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