基于DSP并行系统的FFT算法实现

Implementation of FFT Algorithm Based on Parallel DSP System

在卫星图像处理项目研究中,大量使用到快速傅立叶变换运算。为了进一步提高运算速度,提出使用DSP芯片TMS320DM642和X86-PC系统组建实验系统。在实验系统中,主要运算任务由2个并行的DSP子系统承担。通过与传统FFT计算平台的比较实验,表明该系统拥有更加快速的FFT计算能力,并且还可以通过扩展进一步提高这种运算能力。

Fast Fourier Transform （FFT） is widely used in our project. To increase the speed of data processing, anewsystern compesed of two DSP subsystems and an X86-PC subsystem is designed in the paper. In the experiment, Parallel DSP subsystems deal with the primary data. According to the experiment that compared the system with the tradition system, the conclusion show that there is an outstanding capacity in dealing with FFT and the capacity can be farther improved.