2.1.5

OFDM multipath fading channel model jakes

Prograssive Switching Median Filter

Kernel principal component analysis (kernel PCA) [1] is an extension of principal component analysis (PCA) using techniques of kernel methods. Using a kernel, the originally linear operations of PCA are done in a reproducing kernel Hilbert space with a non-linear mapping.

a code that converts decimal to bcd

approximation simple function

数字水印提取算法，利用离散余弦变换的（dct）算法(Digital watermark extraction algorithm using discrete cosine transform (dct) algorithm)

如何在Matlab环境下执行频谱分析，修改和重新合成声音。(how to perform spectral analysis, modification and re-synthesis of sound)

the convert the audio from the cep unit fft to mel spectrum(the convert the audio from the probes unit fft t o mel spectrum)

滑模变结构控制在本质上就是一种特殊的非线性控制。它的非线性主要是因为控制的不连续性，也就是说滑模控制的“结构”有一种随时间变化的的开关特性。(Sliding Mode Control in essence, is a special kind of nonlinear control. Its nonlinear mainly because of the control of the discontinuity, which means that the sliding mode control " structure" of a change over time of the switching characteristics.)

Music algorithm of uniform linear array