TWT output signal denoising based on improved wavelet threshold

摘要

Based on hard, soft and semi-soft threshold method, an improved threshold method for TWT output signal is proposed. The mathematical model of wavelet threshold denoising for TWT output signal is established. The experimental signal of TWT is denoised using wavelet threshold method. The results show that SNR increased from 44.55dB to 50.15dB, and the improved wavelet threshold method is better than hard, soft and semi-soft threshold method for the output signal of TWT.