The Design of a High Speed Dynamic Image Collecting System Based on DSP Technology

In order to achieve the fast and accurate data collection,this paper introduces a digital signal processing method which is based on DSP(Digital Signal Processor)and FPGA(Field Programmable Gate Array).The video image collecting system is based on digital signal processing technology,and FPGA is used as its main control unit.The purpose of adopting FPGA is to reduce the load of DSP.Owing to this special structure,the collecting system has some advantages,such as convenient interface with other devices which is based on modern digital technology;the high integration of digital module;the physical separation of processing unit and control unit and high system precision and so on.All the above mentioned merits make the system extensive in applications.The paper also details the structure of the data collecting part and the control logic of FPGA,and the implementation of interrupting the data access function of DSP besides introducing system composing and its basic principles.