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A novel technique of noise suppression based on singular value decomposition (SVD) algorithm for a UWB system with Time hopping (TH) and pulse amplitude modulation (PAM) are considered is presented in this paper,. According to the different correlation about UWB signals and Gaussian noises respectively, SVD is used to approximate the noises which then are subtracted from the received signals. Aiming...
In this paper, a novel denoising technique based on singular value decomposition (SVD) algorithm for a UWB system with Time hopping (TH) and pulse position modulation (PPM) are considered is presented. According to the different correlation about UWB signals and Gaussian noises themselves, SVD is used to approximate the noises which then are subtracted from the received signals. Aiming at shortcomings...
The empirical mode decomposition (EMD) method for analysing nonlinear and non-stationary data has attracted great research interests. Because, the TH-PPM UWB signal which has the property of transient and low probability of intercept (LPI) is non-stationary, in this paper, the EMD method is used to extract the weak impulse radio signal from noisy environment. The noisy TH-PPM UWB signals are decomposed...
The empirical mode decomposition (EMD) method for analysing nonlinear and non-stationary data has attracted great research interests. Because, the PAM-DS UWB signal which has the property of transient and low probability of intercept (LPI) is non-stationary, in this paper, the EMD method is used to extract the weak impulse radio signal from noisy environment. The noisy PAM-DS UWB signals are decomposed...
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