The Application Of DSP Array In The Signal Processing

Along with the rapid development of the modern underwater acoustics technology, the performance of computers must be improved urgently in many fields such as sophisticated scientific computation, massive data processing, a large-scale engineering design, simulation and real-time intelligent reasoning system and so on, also the operating speed of the computer enhanced by parallel processing technology would be taken into account more and more by people.Sonar signal processing is the most complex branch of signal processing field. The most important characteristic of the sonar technology is the application of the digital signal processing (DSP) technology. However the modern computer processing speed can not satisfy the practical application demands. Because the parallel processing contain the great potential of solving large-scale problems and advancing processing speed , the solution of the signal processor lied in the parallel of the architecture structures.In this paper a DSP parallel signal processing board which have characteristic of combining loose coupling and close coupling and which topology of hardware system can be flexibly deployed, contain eight pieces of DSP using TMS320VC5416 and TMS320VC33 of TI.This entire system has a high capability of data processing and the parallel processor developed has a high scalability which can be extended signal processor containing complex topology structure in order to adapting to the parallel algorithm request of different scale. The paper includes:1. A DSP parallel signal processing board containing eight pieces of DSP is designed which include the board design, the schematic diagram design, the electric circuit board design, the electric circuit board weld and the debugging.2. The setting of DMA, series and parallel port of the DSP of the DSP parallel 3. signal processing board.4. The programming of CPLD using VHDL.5. The programming of FFT algorithm.