摘要：文章对PCMA系统相位调制信号的谱特征进行分析,重点从数学角度推导了OQPSK和π/4-QPSK的谱特征,并分析了谱特征在PCMA信号接收中的应用价值。仿真实验表明,BPSK、OQPSK和π/4-QPSK混合信号在信噪比10dB以上时可以获得很好谱线提取率,具有良好的稳健性。
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