APPARATUS AND METHOD FOR THE COMPENSATION OF ABSORPTION PROPERTY OF UNDERWATER ACOUSTIC COMMUNICATION SIGNAL

摘要

An apparatus and a method for compensating for an absorption property of an underwater acoustic communication signal are provided to improve a bit error rate or a signal to noise ratio. A reverse response calculator(10) calculates a reverse response about an equivalent low pass frequency response of an absorption coefficient to compensate for distortion of signal due to an absorption property during a process that an acoustic signal is propagated under water. The reverse response calculator uses the calculated reverse response so that an absorption compensator(20) generates a transmitting signal which is compensated in a time domain or a frequency domain having a frequency characteristic of the absorption coefficient.