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Polarization filtering attracts extensive attention for its special property in solving problems which are unable to deal with in temporal or frequency domain. Conventional polarization filter can suppress interferences by seeking for the orthogonal vector of the interferences while it will inevitably bring in distortion to the target signal in its amplitude and phase; Null phase-shifting polarization...
We consider the multi-valued discrete real training set that can not be separated by one multi-valued multi-threshold neuron. Such training set is defined as linearly nonseparable set in this paper. Our objective is to use multi-valued multi-threshold neural networks to learn nonseparable training sets. First we give the method that how to determine a training set is separable or nonseparable (i.e...
The peak-to-average ratio (PAPR) of orthogonal frequency-division multiplexing (OFDM) system is one of the most important drawbacks that limit the performance of OFDM. Selected mapping (SLM) performs very well in PAPR reduction and the optimality condition for SLM has been proposed. A large number of vectors meet this condition, one of which is loosely synchronized (LS) code. Moreover, OFDM must be...
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