一种实时图象处理子系统的硬件实现

本文论述了一种以 TMS 32020为主处理器构成的快速图象处理子系统.该系统配接在 MC68000微型机上作为计算机图象系统的附加硬设备.它克服了一般微机数据量不大、运行时间长、无法实现实时处理等缺点,具有造价低廉、处理速度快以及使用灵活等特点.此外,本文还论述了用 TMS32020汇编语言实现二维数字滤波,特别是卡尔曼滤波对该系统进行的实践验证.文章最后部分对系统的进一步完善作了展望,认为在 TMS 32020的运行速度和存贮空间有限的情况下,提高系统的处理速度须采用多片 TMS32020处理器并行处理的方式.

The Hardware Implementation of a Real-time Image Processing Subsystem

This paper describes a kind of high-speed image processing subsystem which uses the chip TMS32020 as its main processor.This subsystem is linked to MC68000 microcomputer as an additional hardware equipment of the computer image system. Therefore,it overcomes the shortages of general-purpose computer such as little memory space and long processing time.This subsystem has the features of low- cost,high processing speed and flexibility.As an example,this paper also discusses two-dimensional digital filtering,especially 2-D kalman filter,which are implemen- ted by TMS32020 assembly language.So we verify this subsystem.The last part in this paper forecasts the further development of the subsystem.The writer thinks that,under the condition of the limitations of TMS32020's operating speed and its storage space,using two or more TMS32020 DSP processors as parallel processing is an effective method for increasing the subsystem's processing speed.