Title :
New threshold and shrinkage function for shipborne radar echo signal denoising based on wavelet transforms
Author :
Xiaonan, Chen ; Jingdong, Suo ; Xiaoqiong, Wang ; Zhiyuan, Xu
Author_Institution :
Dept. of EI, Dalian Maritime Univ., Dalian, China
Abstract :
In order to denoise shipborne radar (9 GHz pulse radar) echo signal in distortion-free, smooth, and less loss, a new threshold and shrinkage function are proposed in this paper based on the Multi-analysis wavelet threshold denosing. The denoising effects of different shrinkage function for shipborne radar echo signal were compared. The results of experiment show that better SNR and similarity and smoothness and less loss can be reached by using the proposed function to shipborne radar echo signal.
Keywords :
marine radar; radar signal processing; ships; signal denoising; wavelet transforms; multianalysis wavelet threshold denosing; shipborne pulse radar echo signal denoising; shrinkage function; threshold function; wavelet transforms; Noise reduction; Radar; Radar signal processing; Signal to noise ratio; Wavelet analysis; Wavelet coefficients; denoise; shipborne radar echo; shrinkage; threshold;
Conference_Titel :
Signal Processing Systems (ICSPS), 2010 2nd International Conference on
Conference_Location :
Dalian
Print_ISBN :
978-1-4244-6892-8
Electronic_ISBN :
978-1-4244-6893-5
DOI :
10.1109/ICSPS.2010.5555511
