数字通信信号调制自动识别研究

Computer Engineering(2011)

Cited 23|Views9
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Abstract
为自动识别MASK、MFSK、MPSK和MQAM信号的调制类型,提出一种瞬时幅度提取算法。该算法不需要对信号进行Hilbert变换和实现码元同步。在此基础上,提出7个特征参数和基于判决理论的调制自动识别算法。仿真结果表明,当信噪比≥8 dB时,识别算法的平均识别成功率≥97%,证明提出的瞬时幅度提取算法和调制自动识别算法均有效,可用于实际信号的在线分析。
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Key words
instantaneous amplitude,digital communication signal,feature parameters,Signal-to-Noise Ratio(SNR),automatic modulation recognition
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