Chapter-4

实现输入一串数字，然后matlab可以将数字对应的蜂鸣音播放出来（类似于电话的拨号）(Achieve input a string of numbers, then you can figure corresponding matlab beep play out (similar to dial-up phone))

说明：  MATLAB课堂考勤（GUI） 该课题为基于MATLAB pca的人脸考勤系统。可以从一副图像中找出多人人脸，分割，计算人数，然后提前制作好这些人的人脸库，进行逐一识别是谁，是不是库内人脸，如是，具体是谁，如果不是，那提示库外人脸。具有友好的人机交互界面，还可以二次开发成摄像的，但是摄像头误差可能会有点。识别流程为：读取图像，人脸定位，人数统计，人脸分割，人脸识别，库内外判别。(The subject is face attendance system based on MATLAB PCA. We can find multiple faces from an image, segment and calculate the number of people, and then make a face database of these people in advance to identify who they are one by one, whether they are the faces in the database, if so, who they are, and if not, prompt the faces outside the database. It has a friendly human-computer interface and can be developed into a camera again, but the camera error may be a little bit. The recognition process includes: image reading, face location, number of people statistics, face segmentation, face recognition, identification inside and outside the database.)

QMF滤波器在语音编码中的应用,通过matlab 实验程序设计和实现二通道镜像滤波器(QMF、CQF、OQF)在语音编码中的应用，针对不同的滤波器阶数，采用批量算法，实现和比较波形编码的效率和精度(qmf filter use in wave)

本人写的小程序，包含有QPSK、ASK、OOK、FSK、BPSK等几种调制方式(I wrote a small program, includes QPSK, ASK, OOK, FSK, BPSK modulation, such as several)

说明：  自编程实现fir滤波的低高带通和多带设计(Programming fir from low-high band-pass filtering and multi-band design)

几篇关于dv-hop定位算法改进的比较新的文章，重点在平均每跳距离上改进(Several dv-hop localization algorithm improved relatively new articles about the focus on the improvement of the average distance per hop)

Run this m-file to see several examples of volume visualization in MATLAB.

this is a matlab code for cdma it is a calculation of ber,snr etc.

刘卫国-MATLAB程序设计与应用(第二版)教学资源(Liu Weiguo-MATLAB Program Design and Application (Second Edition) Teaching Resources)

fourier usning matlab