Abstract
该文针对衰落信道下调制识别算法预处理要求高的问题，提出了一种基于循环平稳性检测的调制分类算法，提升了盲接收环境下的分类效果。算法以信号的循环频率为特征，结合循环平稳性检测，实现了OFDM, PSK, FSK等常见数字调制信号的区分。算法无需各种参数估计以及同步等预处理过程，理论推导及仿真结果证明，能够实现低信噪比衰落信道条件下信号的有效区分。该算法将有助于提升衰落信道中非合作接收条件下的信号分类能力。
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