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OFDM-based multi antenna systems suffer from inaccurate channel estimates in time variant channels which lead eventually to performance degradation. Decision-directed channel estimation (DDCE) schemes have been proposed to reduce the number of reference symbols. A prediction of channel coefficients is necessary for MIMO detection, whose output is used to acquire new channel estimates recursively....
A Fuzzy Wavelet network (FWN) is proposed to model the characteristics of a speaker in an automatic speaker verification system in this paper. The neural network using wavelet as activation function is wavelet network (Wavenet). Wavenet has the ability to extract the distinguishable and essential features in frequency rich signals. This is required in classification and identification problems such...
Video stabilization is one of the most important enhancement techniques used to remove undesired motion in a video. Combination of global camera motion estimation along with motion separation determines the undesired motion, which is to be compensated to produce a stable video sequence. In this paper a novel method for robust video stabilization is proposed which uses Speeded Up Robust Features(SURF)...
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