Identification of Wavelet Modulation Based on Gaussian Detection and Kurtosis of Power Spectrum
Xianghong Tang, Liyue Li, Ling Zhao · 2009
Wavelet modulation is a new type of multi-carrier modulation, this paper based on the asymptotically Gaussian distribution and frequency spectrum's feature of OFDM and wavelet modulated (WM) signal, studies the recognition of wavelet modulated signal in the additive white Gaussian noise channel. Using the joint estimation of the signal to noise ratio (SNR) and features value based on higher order moments and kurtosis of power spectrum can respectively identify single-carrier modulated signals and multi-carrier modulated signals; OFDM and WM signal. Simulation results show that good performance is obtained and Gaussian noise interference is eliminated.