Source number estimation algorithm in wavelet domain for single-channel mixed-signal
Liang Wu, Huiqin Zhou, Hua Jiang · 2012
In this paper, the principle of the singular point detection in wavelet domain is analyzed, and the expression of amplitude of the energy function of the digital modulated mixture is derived, and the effect of the additive Gaussian noise is analyzed. A new single channel source number estimation algorithm is proposed based on the energy operator without any prior knowledge. The simulation result shows the efficiency of this algorithm.