自己写的matlab程序，用FFT分析3年来双色球彩票走势，当然了，还没有成功：），努力中。。。 有兴趣者可以共同探讨。-himself wrote the Matlab procedures, using FFT analysis of three years Shuangseqiu Lottery trend, of course, also without success :) efforts. . . Interested parties can jointly explore.

用hanning窗的插值FFT算法，适用于电力系统信号的谐波分析,Hanning window with interpolation FFT algorithm, applied to power system harmonic analysis signals

The program evaluates zoom lens design performance by comparing the image plane displacement and relative zoom range and it also optimizes the initial system to larger zoom range. Useful to optics students on lens courses.

matlab通带滤波，是在频域内实现的，最好用于地震波，或其他一些信号逐渐衰减的情况-bandpass filter,used for strong motion data process for better. because the software carry out the filter function through fft

比较两个不同的倒频谱分析方法的一个有限的时间框架的言论,即基于fft算法的传统方法(与框架展开复杂的倒频谱),和一个分析方法基于求解有限阶分子多项式的根的倒频谱和直接计算多项式根的位置。-This MATLAB exercise compares two different methods of cepstrum analysis of a finite duration frame of speech, namely the conventional method based on FFTs