The Integrated Testing Apparatus Based On DSP

Underwater target simulation is the integration of system simulation technology and underwater acoustics, and the object of underwater target simulation is the underwater cooperant beacon mobile vehicle and the underwater acoustic environment.Taking the renovation of certain underwater target tracking and positioning system as the project background, this thesis designs the underwater target simulator used to examine function and performance of the system equipment by simulating the received signal of underwater acoustic measurement equipment, and then illustrates particularly hardware design and the software implementation of it. The main content includes the followings: The overall design of the target simulator, the design and implementation of the hardware and software and so on. According to the design request of the underwater target tracking and positioning system, the digital signal processing system of the underwater target simulator has to be composed of DSP and FPGA, so as to achieve the characteristics of the real-time signal processing system, such as high-speed computation, large amount of data, handy calculation and complex control structure. The structures and function of every module of the system are presented in this paper, and then the implementation of direct digital frequency synthesizer based on DSP is introduced particularly.Finally, the simulator is tested in the underwater target tracking and positioning system, and the results indicate that it matches the requests of the practical performance and can serve for improvement project of certain underwater target tracking and positioning system reliably and continuously.