| 摘要 |
PURPOSE: A method and an apparatus for a front signal of a receiver for underwater acoustic communication are provided to reduce an operation load for frequency shift and low band pass filtering, thereby reducing power consumption. CONSTITUTION: A BPF(Band Pass Filter)(120) filters a signal in a set band for a receiving signal of a sound wave signal(110). A sampler(130) samples the signal. A frequency shift and low band pass filter unit(150) performs low pass filtering of the signal after converting the signal into a baseband signal. A synchronizing unit(170) recompenses frequency shift, phase shift, and symbol time shift about the signal. A channel equalizing unit(180) compensates distortion of the signal. |
