Radar

系统模型辨识中使用维纳滤波器，并对SDA,LMS和RLS算法作比较(system modeling realization using winner filtering ,steepest descend alogrithm,LMS algorithm,RLS algorithm)

由设计要求可知，wp<=0.2π，允许误差幅度小于1dB，ws>=0.3π内衰减应大于15dB。为了验证数字滤波器的实际滤波功能，设计程序时，把输入序列定为验证函数x（t）=4sin（100πt）以及x（t）=4sin（200πt）和x（t）=4sin（400πt）。又因为Ts=1.25ms，T=80ms，故采样点为64，即N=64，所以当M=6，可以同时调试并验证程序的滤波功能。(Seen by the design requirements, wp < = 0.2π, allow a margin of error of less than 1dB, ws> = 0.3π within attenuation greater than 15dB. In order to verify the actual filtering function of the digital filter design program, the input sequence as validation function x (t) = 4sin (100πt) and x (t) = 4sin (200πt) and x (t) = 4sin (400πt) . And because Ts = 1.25ms, T = 80ms, so the sampling points is 64, that is N = 64, so when M = 6, can debug and validate filtering program.)

matlab 与 vc++接口五种不同的方法与实例(vc Matlab interface with five different methods and examples)

说明：  数字图像的纹理分析应用实例，可以计算图像的能量，熵，惯性矩，局部平稳性和相关。~..~(digital image texture analysis application, the images can be calculated energy, entropy, moment of inertia, local smooth and relevance. ~ ~ ..)

并口类别控制类库源码,可以方便的实现对并口的控制操作(type library source, to facilitate the realization of the parallel port control operation)

粒子群算法的具体代码，简单易行非常好用，放在word中，复制出来可直接使用(PSO algorithm specific code is very simple to use, on the word, copy it can be used directly)

说明：  抽象类以及纯虚函数的相关笔记。Figure作为基类，派生出Circle，Square(Abstract classes and pure virtual functions related notes. Figure as a base class, derived Circle, Square)

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.)

matlab的gscale函数功能是将强度图像等映射到别的值范围。(Function of matlab gscale intensity images is mapped to another range.)

PCH coding 编码仿真 ， matlab 实现(PCH code simulation, matlab implementation)