C语言编写的傅立叶正逆变换，经过测试与matlab里面的.m算法结果一致。还有数据测试可用。适用于工程信号处理中。-C language of the Fourier transform, After test and Matlab inside m algorithm results. There are data test available. Suitable for engineering signal processing.

一种通过快速傅里叶余弦变换的解包裹程序（基于Matlab）(fast phase unwrapping algorithm)

在matlab中，对特定取值范围的傅里叶频谱进行对数变换。(In MATLAB, logarithmic transformation is carried out for Fourier spectrum of a particular value range.)