FFT

Decimation reduces the original sampling rate for a sequence to a lower rate, the opposite of interpolation. The decimation process filters the input data with a lowpass filter and then resamples the resulting smoothed signal at a lower rate.

2-D Propagation Code for Bounded Media

DAB transmitter, synchronization and receiver under development

说明：  （转载，供matlab新手学习用）简单信号的频谱分析，非常经典。包括正弦信号，矩形波，白噪声三类信号的频谱分析，很详细，代码有注解。( frequency analysis of signal using Matlab)

The Hilbert transform is a linear operator which takes a function, u(t), and produces a function, H(u)(t), with the same domain.

Matlab软件实现识别图像中时钟的时间(Recognizing the time in image by Matlab.)

合流超几何函数是处理较为复杂的语音处理算法中的较为常见的程序，它在MATLAB中能够正确实现相对有些困难，附上的程序能够在语音增强算法中正确运行。(Confluent hypergeometric function is dealing with more complex voice processing algorithms in the more common procedures, it can be correctly implemented in MATLAB relatively somewhat difficult, enclosed in a speech enhancement algorithm program can run correctly.)

matlab code for watershed algorithm based on immersion

Spectral analysis of discrete deterministic signals

IEM模型，积分方程模型，模拟地表HH计划下后向散射系数(IEM model, integral equation model, simulated surface HH program backscattering coefficient)