shichangfa

说明：  一套由matlab编程的基于小波的水印应用图片例子(A set of matlab programming applications based on wavelet image watermark example)

仿真程序：首先需要用一个随机发生器产生（0.1）内的均匀随机数，然后再将该序列映射到对应的幅度电平｛Am｝。然后将这个范围再分成4个相等的区间，这些子区间分别对应于4个信号比特的符号00，01，10，11。检测器观察到r=Am+n，并且计算r和4种可能传输的信号幅度之间的距离，它的输出Bm就是相应于最小距离的信号电平。Bm与真正的的传输信号幅度比较，差错计数器用来对检测器产生的差错计数。(Simulation program: first need to use a random generator (0.1) the uniform random number, then the sequence is mapped to the corresponding amplitude level {Am}. Then this range has been divided into four equal intervals, these sub-intervals corresponding to four signal bits of the symbol 00,01,10,11. Detector observed r = Am+ n, and calculate r and 4 possible transmission distance between the signal amplitude, its output corresponding to the minimum distance Bm is the signal level. Bm and the real rate of transmission of the signal comparison, error detection counter is used to generate the error count.)

这是MATLAB的经典课件，每个PPT都详细的讲解了MATLAB的各方面内容，是优秀的入门教材(This is a classic courseware MATLAB, each PPT are detailed explanations of the various aspects of the MATLAB is an excellent introductory textbook)

MATLAB的算法测试测试函数一共十个，都是最经典的(MATLAB algorithm test function of a total of ten, are the most classic.)

传统的music算法仿真 通信信号处理 功率普估计 波达方向估计 (Traditional music algorithm simulation communications signal processing power Pu estimated DOA Estimation)

Gram-Schmidt orthogonalization of the columns of A.

Matlab image merging test

蚂蚁算法求解路径优化问题就是求解有车辆约束问题的matlab程序，包括四个文件。(Ant algorithm for path optimization problems)

matlab实现特征值的计算，对于初学者非常有用。从书上下载的源代码。(Feature is matlab calculation, is very useful for beginners. Downloaded from the book source code.)

main_DSCDMA.m 这个仿真程序用于实现DS-CDMA通信系统仿真 ( Main_DSCDMA.m of this simulation program used to implement DS-CDMA communication system simulation)