Adaptive Denoising of Very Low Snr Signals
نویسندگان
چکیده
In 1992 David Donoho has introduced the term denoising in connection with the adaptive nonlinear ...ltering in the discrete wavelets transform domain. Despite its advantages this method is not used yet in the communications ...eld. The goal of this paper is to propose a new denoising method, using another strategy for the threshold selection and another wavelets transform. This new discrete wavelets transform enhances the diversity in the wavelets transform domain. The denoising method is useful for the treatment of very low SNR signals. There are already a lot of denoising methods, but the case of very low SNR signals, very interesting in communications, was not considered yet. The results of some simulations prove the performances of the new denoising method.
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