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In this paper, we propose an method which is optimizing length of the equalizer taps using genetic algorithm (GA). The equalizer is a decision feedback equalizer (DFE). Feed-forward filter length and feed-back filter length are regarded as genetic information in GA. The GA uses different random cross-over methods. It finds out the optimized DFE tap length for low bit error rate BER. There are two...
In this paper, we propose an underwater acoustic communication with hyperbolic frequency modulated waveforms. The first process is modulating a hyperbolic chirp's slope by binary data with a silence representing 0, and a hyperbolic frequency modulated pulse representing 1. The received signal is demodulated by matched filtering of received signal and one hyperbolic chirp pulse. The binary ‘1’ is decided...
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