Two-times-smoothing

这是一种基于密度的聚类分析算法，可以发现任意形状的簇，可以发现噪声点。(This is a density-based clustering analysis algorithm can find clusters of arbitrary shape can be found noise points.)

说明：  这是语音信号处理里面的，基本谱减法，处理的效果很不错，很适合初学者研究！(This is the speech signal processing inside the basic spectral subtraction to deal with the effect of very good, very suitable for beginners study!)

Matlab Code for denonsing approach

signal for PC software

STBC编码的一个MATLAB程序，有详细注解(a matlab code for STBC with detailed notes)

关于cdma2000 crc编码器的源程序(About cdma2000 crc source encoder)

夫琅和费衍射的matlab仿真，对此方面做了比较详尽阐述(Fraunhofer diffraction of matlab simulation, which has done more elaborate)

射线追踪,包含了起点和终点的射线函数，对于地震传播研究具有重要意义！(Raytracing in a v(z) world. The toolbox contains functions forshooting fans of rays and functions for tracing rays with specific start and end points. General multi-bounce rays with any number of mode conversions can be traced. Automatic routines for P-P and P-S primaries in shot-gather geometry are provided for convenience. Any recording geometry can be used but most functions vectorize (e.g. are most efficient) for shot-gather geometry. Only traveltimes and rayparameters are detemined, not amplitudes. In these routines, the velocity models should be considered as "background" models. This means that the depths at which flections and mode conversions occur are dependent of the depths given as layer boundaries in the velocity models. Velocity models are specified by a vector of velocities and a same-size vector of depths. The j th velocity is in effect from the j th to the j+1 th depth. The bottom of the model is assumed at infinite depth. Thus v=5000 and z=0 specifies a cons)

aircraft lateral dynamics evaluation code from a stability and control book. unfortunately the exact name of the book is not known. the file works fine.

核主成分分析中使用多项式核函数时的MATLAB代码，有注释，易看懂。(Kernel Principal Component Analysis in the use of polynomial kernel function of the MATLAB code, annotated, easy read.)