Hardware And Software Implementation Of Target Measurement System Based On Sound Source Localization

With the development of the theory of sound source localization,the localization of sound target can be achieved by using the technology of sound source localization.The application of sound source localization is more and more widely in military field.This article describes the hardware and software implementation of target measurement system based on sound source localization.Based on GSI and embedded technology,the hardware architecture of target measurement system is proposed.It includes power hardware module,clock hardware module,reset hardware module,ADC hardware module,FPGA hardware module,SDRAM hardware module,ARM hardware module and NRF24L01 hardware module.Based on GCC time delay estimation algorithm,the software architecture of target measurement system is proposed.It includes clock management software module,data cache software module,data storage software module,data preprocess software module,data transmission software module,signal processing software module and wireless transmission software module.In this article,firstly,the chip selection of each hardware module and the hardware circuit design of each module are described.Secondly,the implementation approach of each embedded software module are discussed.Lastly,the data cache module,data storage module and data transmission module were tested,The test results show that when the sampling rate of ADC is 20 MHZ,the data can be buffered,stored and transmitted correctly.The high speed sampling,high speed data storage and transmission meet the design requirement.