Abstract:The selection of transmitting signal waveform is one of the problems that must be considered in the design of active sonar. Different signal forms will directly affect the performance of the sonar. Marine mammals communicate with each other and perceive the underwater environment through calls. This common biological behavior inspired the development of sonar systems based on biological calls. However, marine organisms are widely distributed around the world and there are many kinds of calls. It is necessary to analyze the effectiveness of the collection calls in combination with the design parameters of the sonar system in order to expand the bionic covert detection function without changing the traditional sonar design. In order to solve this problem, this paper proposes a method to analyze the call efficiency of marine organisms based on active sonar signal analysis. Taking 6 kinds of dolphin calls collected as examples, the bionic signals of the sonar system are analyzed from 5 dimensions based on synchronous compression transform and greedy algorithm to reconstruct sample signals; The simulation results show that the effectiveness evaluation scheme can realize the screening of marine organism calls to determine the signal waveform suitable for sonar system.
