DocumentCode
1866028
Title
An improved wavelet signal denoising method for TWT
Author
Anquan Wu ; Changsheng Shen ; Xiaohan Sun ; Haihua Gong ; Yixue Wei ; Jinjun Feng ; Tiechang Yan
Author_Institution
Res. Center for Electron. Device & Syst. Reliability, Southeast Univ., Nanjing, China
fYear
2015
fDate
27-29 April 2015
Firstpage
1
Lastpage
2
Abstract
An improved wavelet method is presented for TWT signal denoising, in which linear-hard and nonlinear-soft threshold regions are defined and given. In MATLAB simulation, Doppler signal affected by 7 dB of additive-white Gaussian noise is analyzed and denoised. The results show that signal to noise ratio is 24.2362 and root mean square error is 0.4356, and the improved method is better than the conventional methods.
Keywords
AWGN; mean square error methods; signal denoising; travelling wave tubes; wavelet transforms; Doppler signal; MATLAB simulation; TWT; additive-white Gaussian noise; improved wavelet signal denoising method; linear-hard threshold region; nonlinear-soft threshold region; root mean square error; Noise measurement; Noise reduction; Signal to noise ratio; Tin; TWT; signal denoising; threshold method; wavelet transform;
fLanguage
English
Publisher
ieee
Conference_Titel
Vacuum Electronics Conference (IVEC), 2015 IEEE International
Conference_Location
Beijing
Print_ISBN
978-1-4799-7109-1
Type
conf
DOI
10.1109/IVEC.2015.7224046
Filename
7224046
Link To Document