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Underwater Acoustic Communications
Synchronization and Equal
4 other sections not shown
10000 symbol intervals 110 nautical miles 48 nautical miles achieved bandwidth beamformer bit error BPSK carrier phase carrier synchronization channel estimation channel response coherent combining communication system computational complexity data rates data sequence data symbols decision-feedback equalization delay tracking depth diversity combining equalizer tap-weights equation error covariance fading channels fading rate feedforward forgetting factor fractionally spaced frequency Gaussian given impulse response input intersymbol interference Kalman filter linear equalizer long-range deep water matched filter medium-range MLSE modulation multichannel equalizer multipath propagation nautical miles noise obtained ocean channel optimal multichannel optimal receiver output scatter overall phase fluctuations phase tracking probability of error processing propagation paths QPSK range Rayleigh fading received signal receiver algorithm receiver parameters reduced-complexity region samples shallow water channel single-channel sound speed symbols per second techniques telemetry time-varying tracking constants transmission transmitter UWA channels UWA communications vector Viterbi algorithm waves