超声信号处理系统中FPGA的动态重构  

Dynamic Reconfiguration of FPGA in Ultrasonic Signal Processing System

作　　者：鲍晓宇[1] 施克仁[1] 洪玉萍[1] 

机构地区：[1]清华大学机械工程系无损检测实验室,北京100084

出　　处：《微电子学与计算机》2003年第7期5-7,共3页Microelectronics & Computer

摘　　要：DSP+FPGA结构广泛应用于高速实时信号处理系统中。FPGA作为可配置的协处理器完成系统前端简单高效的特定算法,并且可以在线进行动态重构,从而在不同情况下调入不同逻辑完成不同算法,使系统具有很好的灵活性和可扩充性。以多通道超声信号处理系统为例说明了DSP如何通过高速串口对FPGA进行动态重构,能够以帧频速率改变FPGA内部逻辑算法,大大提高了系统实时性能。DSP+FPGA architecture is widely applied in many high -speed real -time signal processing system.As a configurable co-processor,FPGA can accomplish simple specific algorithms efficiently at the front.Besides this FPGA can be dynamically reconfigured in system,thereby can execute different tasks in different occasions,which makes the whole system very flexible and scalable.As an example,we illustrate how the DSP reconfigure the FPGA dynamically in a multi -channel ultrasonic signal processing system,by using the DSP's high-speed serial port.In this scheme,the FPGA's internal logic functions can be changed at the speed of frame frequency,thus greatly enhance the system's real-time performance.

关 键 词：数字信号处理 超声信号处理系统 FPGA 动态重构 可编程逻辑器件 

分 类 号：TN911.72[电子电信—通信与信息系统] TP332.1[电子电信—信息与通信工程]