viterbi_qtz4

PCA人脸识别的MATLAB实现，包括了ORL人脸数据库。(PCA face recognition in MATLAB, including the ORL face database.)

绘制钢筋混凝土截面弯矩-轴力-曲率的程序，非常实用，适用用于做截面分析。(A program for drawing the M-N- of reinforced concrete cross section is very practical and suitable for making cross section analysis.)

Frequency response measurement in closed loop: brushing up our knowledge

说明：  里面有很多matlab的源代码，可以用于一套的数据处理。包括样本划分，光谱的预处理等(There are a lot of matlab source code, can be used for a set of data processing.Including sample division, spectral pretreatment and so on)

MATLAB仿真WCDMA下行链路RAKE(MATLAB simulation of WCDMA downlink RAKE)

显示采样率的GUI源码，包括理想采样，零阶保持采样，和其他一些方式。对于学习和理解采样定理很有帮助(Show the sampling rate of the GUI source code, including the ideal sampling, zero-order to keep sampling, and some other way. For learning and understanding of the sampling theorem helpful)

数字移动:图中的九个点上,空出中间的点,其余的点上任意填入数字1到8.1的位置固定不动,然后移动其余的数字,使1到8顺时针从小到大排列.移动的规律是:只能将数字沿线移向空白的点. (Digital Mobile: Figure in the nine points, empty out the middle point, the rest of the points fill any position of the numbers 1 to 8.1 fixed and then move the rest of the figures, and make 1-8 clockwise from small to large array . The law of movement is: can only move along the number of blank spots.)

用几何法求解工程结构可靠度标及失效概率的简单算例(Geometric Method for Solving Reliability Index of Structures)

This function transforms a three-phase unbalanced phasor into its symmetrical components. The Three phasors can be expressed in a one column array in rectangular complex form or in a two column array in polar form, with 1st column magnitude and 2nd column phase angle in degree. The function returns the symmetrical components in rectangular form. The function plots the original unbalanced phasors and the symmetrical components.

对几个混合的常规信号进行傅里叶变换，并将其分离开。然后对几个信号进行时频分析，并求出参数估计的误差。(Conventional signals of several mixed Fourier transform, and separated them. And then the several signal time-frequency analysis, and the parameter estimation error.)