Motor-Model-Based-on-EMTDC

说明：  画二维和三维箭头矢量，matlab工具包。直接调用。 This functin is used to draw 2D、3D-arrows. The size of arrow head is decided by the minimum distance between start and stop.(Two-dimensional and three-dimensional vector drawing arrows, matlab toolkit. Direct calls. This functin is used to draw 2D, 3D-arrows. The size of arrow head is decided by the minimum distance between start and stop.)

Forgetting factor least squares method

Genetic Algorithm which was been used by MatLab codec

td-scdma中用QPSK调制后的解调(QPSK demudulation)

改进前推回代潮流算法，计算潮流，适应强，迭代次数少。(Improved push back the tide before generation algorithms, computing trends, adaptable, less iterations.)

在一个移动通信系统中，发射信号是一个未调制的音频x(t)=cos(2πft)，其中f=f0+fi。设标称载波为f0=1GHz，并设fi =512Hz。假定移动用户在一个繁忙的高速公路上距离基站l公里处的地方，从开始从每小时60公里的速度开始，其速度（在0.01秒的时间间隔内测量）以1/2的概率随机的增加或减少1/10公里每小时。试仿真移动用户在这2s的时间间隔内所接收到的信号(及其频谱)。接收信号可以表示为： y(t)=a(t)Cos[2π(fo+f1)(t-△t)] 式中 △(t)=d(t)/c 且 a(t)=k/d2(t) 在上面的表达式中d(t)是在t时刻基站与移动用户的距离，c是光速，△(t)是传播延迟，而a(t)是信号在t时刻的衰减，并假设在这2s内a(t)是一个常数。利用复低通等效模型来进行仿真。(In a mobile communication system, the transmitted signal is an unmodulated audio x (t) = cos (2πft), where f = f0+ fi. Let nominal carrier of f0 = 1GHz, and set fi = 512Hz. Assume that mobile users on a busy motorway station l kilometers place, starting the beginning of 60 kilometers per hour, the speed (measured in 0.01 second interval) to increase the probability of a random 1/2 or reducing 1/10 km/h. Simulation test signal which the mobile subscriber in the 2s time intervals of the received (and its spectrum). The received signal can be expressed as: y (t) = a (t) Cos [2π (fo+ f1) (t- △ t)] Where △ (t) = d (t)/c And a (t) = k/d2 (t) In the above expression, d (t) at time t is a base station and a mobile user s distance, c is the speed of light, △ (t) is the propagation delay, and a (t) is the attenuation of the signal at time t, and assuming that 2s within a (t) is a constant. Using complex low-pass equivalent model for emulation.)

利用MATLAB建立扩展卡尔曼滤波器进行扫描滤波(using MATLAB establishment extended Kalman filter for filtering scanning)

matlab实现的关于数字信号处理2的一个AR模型的程序，大家可以看一下了啊。。。。。(matlab implementation of digital signal processing on an AR model of 2 procedures, we can look at the ah. . . . .)

这是一个很好的雷达MTI动目标检测，里面包含所有动目标检测的滤波器，很实用，有不同系数的滤波器进行比较，滤波器可以直接使用。(This is a very good MTI radar moving target detection, which contains all the moving target detection filter, very practical, compare with different coefficient of filter, filter can be used directly.)

MATLAB Basic, Entering Matrices, Transpose, Subscripts, The Colon Operator, operation