一种基于DSP技术的动态图像高速采集系统的设计

为实现对视频数据快速准确的采集,提出了一种以DSP FPGA为基础的数字信号处理方法.由DSP构成的数字信号处理系统以数字信号处理为基础,FPGA作为主要的控制单元,具有与其他以现代数字技术为基础的设备接口方便、数字部件易于高度集成、系统精度高的优点,使其得到广泛的应用.文章在介绍了系统组成及基本原理的基础上,详细讨论了采集部分的结构和FPGA的控制逻辑、DSP中断取数功能的实现.这种设计具有功能集成、实现简单、修改方便等优点,能得到满意的图像结果.

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.