Title :
Source number estimation algorithm in wavelet domain for single-channel mixed-signal
Author :
Liang Wu ; Huiqin Zhou ; Hua Jiang
Author_Institution :
China Nat. Digital Switching Syst. Eng. & Technol. Res. Center, Zhengzhou, China
Abstract :
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.
Keywords :
Gaussian noise; channel estimation; signal processing; wavelet transforms; additive Gaussian noise; digital modulated mixture; energy function; energy operator; single channel mixed signal; single channel source number estimation algorithm; singular point detection; wavelet domain; digital modulated mixture; energy operators; single channel BSS; source number estimation;
Conference_Titel :
Communication Technology (ICCT), 2012 IEEE 14th International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4673-2100-6
DOI :
10.1109/ICCT.2012.6511350
