1.2

阵列天线的DOA估计MUSIC算法，只有几行简单的代码(DOA estimate the array antenna MUSIC algorithm, only a few lines of simple code)

西蒙赫金的《自适应滤波原理》一书的matlab程序，现在继续上传第12章的程序， 大家学习交流，觉得有用的自己下载，(西蒙赫payment principle of adaptive filtering, one book matlab procedure, we shall now continue From Chapter 12 procedures, the exchange of everyone to learn, find useful to download their own,)

基于PCA的人脸识别代码，识别率可达88 (PCA-based face recognition code, the recognition rate up to 88 )

OLPP for matlab, Good code for you!(OLPP for Matlab, Good code for you!)

该程序实现多特征自适应阈值算法，两个matlab文件，一个为函数，该函数求出信号的特征量值并通过梯度下降法训练出其初始阈值，另一个为主函数，调用该函数文件；该程序将4路信号，每一路信号的特征量值及其自适应阈值求出来，并一起画出图来。(The program features multi-adaptive threshold algorithm, two matlab files, one for the function,the function seek out characteristics value and initial threshold value of the signal by gradient descent , the other main function, called the function file the program seek out four signals , characteristics of each road and the adaptive threshold value,then draw them together on the map.)

AM信号的循环谱的matlab代码实现，初学者适合 (The AM signal of the cyclic spectrum of matlab code, suitable for beginners )

根据二维空间内目标作匀速直线运动和匀速圆周运动的特点，在建立目标运动模型和观测模型的基础上采用基于交互多模算法（IMM）的卡尔曼滤波器对机动目标进行跟踪。仿真结果表明，该算法不仅能够对匀速直线运动和匀速圆周运动的目标进行跟踪，而且在运动模型发生变化时，滤波误差也比较小。 关键词：卡尔曼滤波器；目标跟踪；机动；交互多模（IMM） (two-dimensional space under target for uniform linear motion and uniform circular motion characteristics, the establishment of the target model and observations on the basis of the model based on interactive multi-algorithm (IMM) Kalman Filter right track moving targets. Simulation results show that the method can not only on uniform linear movement and the uniform circular motion of the target tracking, and the campaign model change, the filter error is relatively small. Keywords : Kalman filter; Target tracking; Mobility; Interactive multi-mode (IMM))

reflectivity of dbr stack at different input angles

用matlab求解天线输入阻抗求解，非常准确，基本上没有误差，用的是矩量法(Matlab solve the antenna input impedance by solving, very accurate, with virtually no errors, using a moment method)

说明：  Bpsk在瑞利衰落信道下的仿真模型。simulink实现。可以通过仿真看到瑞利衰落信道对于bpsk性能的影响。并且可以比较rayleigh信道和AWGN信道下bpsk的性能。(Bpsk in Rayleigh fading channel simulation model. Simulink achieve. Simulation can see Rayleigh fading channels for BPSK performance impact. And to be compared Rayleigh Channel and AWGN under BPSK performance.)