CCD相关跟踪器中的32点复数序列FFT研究

分析了CCD相关跟踪器的基本结构,将其应用在中国小行星上天系统,分析了其必要性和重大意义,并针对卫星观测系统中相关跟踪器对高精度实时图像跟踪的要求,通过对各种算法的比较,研究设计了CCD相关跟踪器中的核心模块--利用现场可编程门阵列(FPGA)的快速傅立叶变换(FFT)模块.

Study of 32-Point, Complex FFT in CCD Correlation Tracker

This paper analyses the basic structure of CCD correlation tracker and predicts its necessary and importance in the system for Chinese planetoids going up to outer space. And in order to meet the real_time requirement for the CCD correlation tracker to track image signal in the observation from satellites to the earth, it is necessary that FFT is used to make correlation analysis of images. Through the comparison between different algorithms, this paper researches how to realize 32_point, complex FFT function module by using FPGA in the high speed DSP with an algorithm mixed radix 2 and 4 decimation in frequency architecture.