这是基于matlab的单用户注水算法的源程序，

这个源码提供了穿墙雷达反向投影成像算法的实现(backprojection（BP）算法)

说明：  该代码主要实现的功能是空时编码误码率，误码率随着信道的变化而变化(THE BER OF THE SPACE BASE CODE，the ber varied with the channel)

使得最近打开的MATLAB图形开始下雪，如果没有已经打开的窗口，则首先创建一个窗口。(LETITSNOW- Make the figure snow! Usage: ------ letitsnow - Create snow in the CURRENT figure. If no figure exists, an empty figure will be created. letitsnow(figure_hdl) - Create snow in the figure represented by figure_hdl letitsnow(figure_hdl, color)- Create snow with the specified color color is a scalar ranged 0~1)

加入高斯白噪声的信道模拟,在学习的过程中，做这样的仿真是很有必要的(The simultor of AWGN)

说明：  无线传感器网络（WSN）中两种能量有效协议的简要比较，即LEACH和EAMMH(A brief comparison of the two energy effecient protocols in Wireless Sensor Networks (WSN) namely LEACH and EAMMH)

说明：  雷达系统仿真，雷达SAR成像，信号处理，模糊函数，波形发生，回波模拟，信道模拟，点迹航迹跟踪等等(Radar system simulation, radar SAR imaging, signal processing, ambiguity function, waveform generation, echo simulation, channel simulation, point track tracking, etc.)

KNN classifiers, training is training set, testing is test set, D is the distance, D=1 is mandistance D=2 is 欧氏距离 D=3是 infinite norm K is the number of selected neighbors

Metalog is a modern replacement for syslogd and klogd. The logged messages can be dispatched according to their facility, urgency, program name and/or Perl-compatible regular expressions. Log files can be automatically rotated when they exceed a certain size or age. External shell scripts (e.g., mail) can be launched when specific patterns are found. Metalog is easier to configure than syslogd and syslog-ng, accepts unlimited number of rules and has (switchable) memory bufferization for maximal performance.(Metalog is a modern replacement for syslog d and klogd. The messages can be logged dispatch ed according to their facility, urgency, program name and/or Perl-compatible regular e xpressions. Log files can be automatically rot ated when they exceed a certain size or age. Exte rnal shell scripts (e.g., mail) can be launched when specific patterns ar e found. Metalog is easier to configure than sys logd and syslog-ng. accepts unlimited number of rules and has (swit chable) memory bufferization for maximal perf ormance.)

可以做出一个漂亮的三维心形，赶快快来试试吧(Can make a beautiful three-dimensional heart-shaped, come try it)

本书主要介绍 MATLAB GUI的设计，是matlab界面设计的必备书籍，大量的实例，很实用！(This book focuses on MATLAB GUI design is essential matlab interface design books, a large number of instances, very practical!)