基于信号共轭循环平稳特性的算法研究
The Pre-processing Method Based on Signal Conjugate Cyclostationary
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摘要: 该文在深入研究共轭循环平稳算法内在联系的基础上，提出了一类基于信号共轭循环相关特性的预处理算法(HAM,MHAM,IHAM)。这些预处理算法充分利用了共轭循环相关数据矩阵是。Hankel矩阵的先验信息，通过Hankel预处理来提高算法在低信噪比时的信号到达角估计性能。最后通过计算机仿真实验证实算法的有效性。
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关键词:
- 阵列信号处理; DOA; 循环平稳
Abstract: This paper researches the relation of conjugate cyclostationary methods, and proposes a kind of pre-processing method of conjugate cyclic correlation. These methods make use of the information of the matrix of conjugate cyclic correlation is Hankel matrix. Therefore, pre-processing of Hankel Approximation Method (HAM) is proposed to cope with the low signal-noise ratio (SNR) situations. These methods can improve the performance of Direction-Of-Arrival (DOA), and its effectiveness are illustrated by the simulation results. -
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