DIGITAL UNDERWATER ACOUSTIC COMMUNICATION METHOD USING A HYPERBOLIC CHIRP SIGNAL

摘要

The present invention relates to underwater acoustic communications. More specifically, the present invention relates to a digital underwater acoustic communications method which can effectively overcome a Doppler effect caused by a marine variation or an operation of a platform by using a hyperbolic chirp signal for transmitting a communications signal. The method comprises: a digital signal generating step; a step of determining whether a highest bit is one or not; a chirp signal transmitting step; a silent period setting step; a receiving signal generating step; and a calculating step.