Method and apparatus for phase shift keying underwater acoustic communication

A phase shift keying underwater acoustic communication device and method are provided to easily change an operation environment and a system parameter by software, and monitor a real time communication state and a system operation state through a graphic user environment in real time. A transmission unit(110) converts transmission data into an acoustic signal and outputs it via an acoustic output unit(160). A signal frame configuring unit(120) converts the transmission data into a convolutional code, and generates a signal frame having two CAZAC(Constant Amplitude Zero Auto Correction) signal sequences, a pilot signal sequence, and a ramp up/down signal sequence. A table reference digital modulating unit(130) receives the signal frame in units of frames from the signal frame configuring unit(120) and generates a digital modulation signal. A transmission signal processing unit(140) converts the generated digital modulation signal into an analog acoustic signal and outputs it through the acoustic output unit. A reception unit(210) receives the analog acoustic signal outputted from the acoustic output unit and processes it.