Design And Implementation Of Scaning And Detecting Sonar Hardware Platform

With China’s demand for the development of marine resources and the maintenance of marine safety,it has put forward higher requirements for the development of various military and civilian marine equipment.Based on the current trend of the automation of underwater equipment,this article proposes a design of scaning and detecting sonar based on an underwater unmanned sports platform.This article mainly includes the overall design,simulation circuit design,digital circuit and FPGA logic design,and system software and hardware platform testing and verification.The main work content is as follows:1.Introduce the overall design of the acoustic homing sonar system,including its basic principles,indicators,composition structures,and specific scheme demonstrations in various parts,which proves the feasibility of the design plan.In terms of system chip selection,the system consumption resource volume was analyzed,and FPGA and DSP were selected as signal processing chips to meet the system performance requirements.2.Combined with the design indicators,the design of the receiver and the transmitting machine circuit is completed.The receiver has modules such as filters,gain controllers,and A/D sampling circuits,able to amplify the received signal.Power amplifier,transformer,energy storage circuit and other modules can emit different forms of pulse signals as signal sources.3.Design and implement the hardware circuit of the signal processing platform,complete the relevant signal processing algorithms such as A/D,beam formation on the FPGA platform,and upload the processing data to the upper machine.At the end of this article,each module of the system was tested to and completed the pool experiment.It verified the feasibility and effectiveness of the scaning and detecting sonar system.It has a certain reference value for the design of the scaning and detecting sonar system.