The Research Of Signal Processing System Based On The DSPs

With the development of the technology of signal processing, the signal processing, coordinating with computer, is playing a more and more important role in the science. As a branch of signal processing, the Digital Signal Processing could inosculate with computer and the CPU, because of its particular advantage. The development of information society depends on the advance of information and signal processing. The occurrence of digital signal changes all the word; and digital signal processor has embedded into the entire domain, such as electric, IT and telegraphic communication.The birth of the first DSP(Digital Signal Processors), in 70s of the 20 century, gives a great chance to the development of Digital Signal Processing, with its Havard Structure, Pipeline, Multiplier of Hardware, Special DSP Instruction and the nice integration with C language and assembly language. Among all kinds of DSP, the production of TI holds a great position with 70%. And the TMS320C6000 series DSP pf TI has the best performance in the word.This paper introduces the history of Digital Signal Processing and the related basic theory, first. And then, it describes the solution to Digital Phase Sensitive Detector, Digital Filtering and the correction of non-linearity with the method of least square. Realize the entire solution from phase sensitive detecting, filtering to processing in the system.