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An Improved Method of Wavelet Threshold Function Denoising

  

  1. 1. School of Electronic Science and Engineering, University of Nanjing, Nanjing 210046, China; 2. Construction Servicing Management Division of the 62201 Army, Xi’ning 810008, China;3. Barracks Servicing of Management Department, Academy of Millitary Sciences of PLA, Beijing 100209, China
  • Received:2013-11-08 Online:2014-03-24 Published:2014-03-31

Abstract: Based on the method of wavelet threshold denoising, the procession of wavelet threshold denoising is introduced, and the traditional soft, hard and Garrote threshold function are analysed. In order to overcome the shortcoming of the traditional threshold function, a new modified threshold function is proposed. The results of experimental simulation indicate that the modified denoising method performs effectively and remarkable, which is better than the traditional functions.

Key words: wavelet denoising, threshold function, SNR

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