Array Signal Source Based On ADSP21160

The design of Digital Signal Processing (DSP) system which is applied for target simulation in wideband homing torpedo system — Array Signal Source Based on ADSP21160 system is researched in this dissertation. The paper focuses on the application design of system which can implement the functions and technology requirements of the system. The function of this signal source is to generate manifold types signal and parameters of the signal can enactment by program at all. Under the application background of this dissertation, the main function of this system is to implement the function of wideband homing torpedo system's target echo simulation, reverberation simulation and environment noise simulation under the marine environmental feature and simulate the output signal of array. The primary endeavor and contributions of this dissertation are as follow:(1) Systemic architecture features and realization methods of DSP are discussed and presented. Preliminary discuss design method of the DSP system. Put emphasis on the function realization of system hardware design which mainly involve in the research of the technology of the signal generating, the hardware design and the software engineering.(2) Based on the waveform generation technology and wideband target echo simulation theory, provide detailed analysis for the signals commonly used in torpedo homing system , realization method of target echo simulation,noise, doppler shift, delay and reverberation , put forward Matlab simulation results. Separately give out simulation results of multi-target and moving target.(3) According to technology requirements of the system and simulation results Put forward software design methodology and computation of system demand. On the basis, ascertain the primary parameters of the hardware system and introduce the project of the system hardware design—modularized DSP system. The system is separated to 3 modules. Choose different hardware in accordance with the features of every module, and accomplish the architecture design of every module.(4) Provide concrete hardware circuit design method through discuss and analysis various problem in circuit realization of signal generate module. Modules and processors of this system are communicated by link port.