In this paper,a Quadrature Amplitude Modulation(QAM) signal recognition algorithm is proposed based on amplitude distribution of the signal.The algorithm uses envelop amplitude distribution information extracted by wa...In this paper,a Quadrature Amplitude Modulation(QAM) signal recognition algorithm is proposed based on amplitude distribution of the signal.The algorithm uses envelop amplitude distribution information extracted by wavelet analysis to do modulation classification.It provides robustness for symbol rate determination.Simulation shows that it is more effective and convenient than the recognition algorithm of likelihood function at moderate Signal-to-Noise Ratio(SNR).展开更多
文摘In this paper,a Quadrature Amplitude Modulation(QAM) signal recognition algorithm is proposed based on amplitude distribution of the signal.The algorithm uses envelop amplitude distribution information extracted by wavelet analysis to do modulation classification.It provides robustness for symbol rate determination.Simulation shows that it is more effective and convenient than the recognition algorithm of likelihood function at moderate Signal-to-Noise Ratio(SNR).
