Analysis of Signal Denoisng Performance Influencing factors Based on Matching Pursuit
The basic idea of signal denoising method based on matching pursuit(MP)is utilizing the correlation variance among signal,noise and dictionary.In practical applications,the correlation level is measured with inner product,which may lost its accuracy when SNR is low and signal length is limited.This paper firstly introduces the basic idea and procedure of such method,then analysis the effect of SNR and signal length to correlation ratio threshold and denoisng performance.Simulation results show the effectiveness of the analysis results,and provide some significant conclusions.
signal denoisingmatching pursuitcorrelation ratioinner product
NETL
NSTL
万方数据
