摘要
信号序列的DFT本身就是信号频谱的采样集,所以DFT可直接用于分析信号的频谱。快速傅立叶变换是一种有效、实用的信号DFT算法。文章通过对DIT-FFT算法的详细分析,提出了一种计算机软件仿真信号频谱分析方案,并给出了关键算法的C语言程序。
Signal sequence DFT is a signal frequency spectrum sampling sets, therefore DFT can be directly used for analysis of signals frequency spectrum. Fast Fourier transformation is an effective, practical DFT algorithm. The article detailed analysis through DIT-FFT algorithm, presented a kind of analysis program about computer software simulation signal spectral, and given a key algorithm C language procedures.
出处
《科技广场》
2006年第7期17-19,共3页
Science Mosaic
关键词
时间抽取FFT
蝶形算子
原位计算:码位倒置
DIT-FFT Algorithm
Butterfly Operator
Situ Computation
Binary Code Inversion
