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基于循环平稳的多天线感知无线电频谱检测

DOI: 10.13190/jbupt.200802.85.chenx, PP. 85-89

Keywords: 感知无线电,频谱检测,空间分集,循环平稳

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Abstract:

为了利用多天线的空间分集提高感知无线电频谱检测的性能,提出了基于循环平稳特性的多天线合并频谱检测方法。该方法从各天线接收信号的谱相关函数中提取信道频域响应的信息,在频域合并各天线的接收信号,然后对合并信号进行频谱检测。理论分析和仿真结果表明,该方法能充分利用多天线系统的空间分集提高频谱检测的性能。

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