Denoising of Radar Signals By Using Wavelets And Doppler Estimation By S-Transform

Abstract- The s-transform is a variable window of STFT and extension of wavelet. This paper discussed the principle and method of Wavelet De-noising reduced noise of pulse signal based on wavelet. It is shown that wavelet de-noising can eliminate most noise and preserve effectively sudden change of signal. This paper analyzed and compared the effect of de-noising of pulse signal in different ways all study shows de-noising of pulse signal based on wavelet have practical value. From the s-transform the Doppler frequency can be estimated in different ways.