chap02

说明：  最小二乘法直线拟合在matlab的应用 (Least Squares Linear Fitting)

QPSK Modulation Demodulation, BER vs SNR plot

最短路径算法的MATLAB 版的实现，实属呕心力作···(The shortest path algorithm to achieve MATLAB version, it is disgusting masterpiece.)

LBG算法设计矢量量化码书的函数，需要给出训练序列x,矢量维数K和码书长度CN，返回根据训练序列给出的最小误差码书。(LBG algorithm for vector quantization codebook design function , you need to give training sequence x, vector dimension K and codebook length CN, return according to the minimum error given training sequence codebook . )

beam steering using planar arrays

基于坐标变换的电机模型，采用maltab/simulink建立的模型，三相交流电压型输入。(Motor model based on coordinate transformation maltab/simulink established model, three-phase AC voltage input.)

通过MATLAB中.m语言实现了标准大气模型(The standard atmosphere model is implemented by using matlab )

这个是面部表情自动识别的源代码。它是基于Viola和Jones的面部检测算法和Gabor面部特征点的提取，然后使用训练过的神经网络来识别人脸表情。(This is the automatic recognition of facial expression source code. It is Viola and Jones face detection algorithms and Gabor facial feature point extraction, and then use the trained neural network based on facial expression recognition.)

It simulates the 2 codes both PCM and TDM, taking 3 voice signals as inputs and a multiplexing signal of them as an output graphic

仿真信号 进行卡尔曼滤波去除噪声 并用KNN算法实现定位(Kalman filter is used to remove noise from simulated signals and KNN algorithm is used to locate them.)