The paper,with regard to the different characteristics of MATLAB and LabVIEW softwares,puts forward a method combining programme and virtual experiment,where echo signals that sonar receive will be processed.Both softwares specialize in signal processing and analysis,users can design diversified systems where signals are processed and analyzed.It is not only convenient and visual but also improves the ability、precision and efficiency of signal processing and analysis.

In order to deal with single warship anti-submarine search,setting up the definition of active-use of mobile acoustic decoy,and via the description of fundamental problems and establishment of concerned math-model,the paper introduces simulation results of several typical states and validate and analyze the feasibility of breaking through search for submarine using mobile acoustic decoy forwardly.There is a certain significance to submarine acoustic countermeasure