FSK

PCA是人脸识别中的一个重要领域，这里有源代码，希望对大家有帮助(PCA is an important field of face recognition, where source code, we want to help)

K-L特征压缩器的原理是利用K-L变换的优良性质,即K-L变换可消除原向量各分量间的相关性。(KL compressor characteristic is the use of KL transform the principle of good nature, that the original vector of KL Transform to eliminate the correlation between the various components.)

应用ansoft hfss模拟微带传输线经典例题 (Simulation of microstrip transmission line classic example)

自己编写的svm多分类1对1的程序，如果有错误，请帮忙改正(I have written more than svm classification procedure 1 to 1, if there is an error, please help correct)

设计一个一位二进制数大小比较器。比较两个一位二进制数A和B的大小，电路有三个输出端Y1，Y2和Y3，分别对应A大于B，A等于B，A小于B。当条件满足时，相应输出端为1，否则为0。（A，B用两个脉冲源代替），建立仿真模型并保存。(Design a one binary magnitude comparator. A size comparison of two binary numbers A and B, the circuit has three outputs Y1, Y2 and Y3, respectively, corresponding to the A greater than B, A is equal to B, A less than B. When the conditions are met, the corresponding output is 1, and 0 otherwise. (A, B instead of the source with two pulses), and save the simulation model.)

自发辐射、受激辐射和受激吸收,激光二极管抽运的被动调Q Nd3+:YAG微晶片激光器仿真(Spontaneous emission, stimulated emission and stimulated absorption of laser diode pumped passively Q Nd3+: YAG microchip laser simulation)

这个代码是用matlab编程实现产生一个复指数序列、方波序列、单位阶跃序列单位冲击等几个序列(This code is to use matlab programs have a complex index series, square wave sequences, unit step representation unit and so on several series sequence impact )

This Matlab Code models a Rayleigh fading channel using a modified Jakes channel model. A modified Jakes model chooses slightly different spacings for the scatterers and scales their waveforms using Walsh–Hadamard sequences to ensure zero cross-correlation. alpha_n = frac{pi(n-0.5)}{2M} and eta_n = frac{pi n}{M}, results in the following model, usually termed the Dent model or the modified Jakes model: R(t,k) = sqrt{frac{2}{M}} sum_{n=1}^{M} A_k(n)left( cos{eta_n} + jsin{eta_n} ight)cos{left(2pi f_d t cos{alpha_n} + heta_{n} ight)}. The weighting functions A_k(n) are the kth Walsh–Hadamard sequence in n. Since these have zero cross-correlation by design, this model results in uncorrelated waveforms. The phases ,! heta_{n} are initialized randomly and have no effect on the correlation properties. Matlab fast Walsh-Hadamard transform function is used to efficiently generate samples using this model.

说明：  简单的移动通信系统，在awgn+瑞利衰落条件下，给出同SNR时系统性能(Simple mobile communication system)

Implémentation d une Table de Huffman statique