A Novel Approach for Automatic Modulation Recognition Based on Wavelet Transform
Zhiyong Zhang · Journal of Nanjing University of Posts and Telecommunications · 2007
A novel approach based on the theory of wavelet analysis is proposed for automatic modulation classification of MPSK and MFSK by Gaussian wavelet transform.The approach recognizes the modulation signal through extracting the value of amplitude and the transient information by Gaussian wavelet transform.It does not need the prior knowledge,overcomes the problem of undetected information of haar wavelet transform method and increase the applicability of the method of automatic modulation recognition based on wavelet transform.Moreover,we compare the new method and the Haar wavelet transform method from the point of view of theoretical analysis and computer simulation,furthermore,we justify the efficiency superiority of the new method.