蚁群算法

This is a Matlab code explaining the Primal SVM training and testing algorithm using Lagrange mathematical theory

Gaussian smoothing filter

本程序用于观察数字信号处理中的吉布斯现象，有助于加深对窗与信号截断的理解(Change the length of the window and observe the Gibbs phenomenon)

this file can be used to filter the latent state variable(used to filter the latent state variable)

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.

模块多电平升压降压变换器仿真模型，完美运行，各电流电压均正常，可分析谐波(Module multi-level step-up buck converter simulation model, the perfect run, the current and voltage are normal, can be analyzed harmonic)

使用M语言编程的PLL程序，可以快速的实现对相位的锁定。(PLL using the M programming language program, you can quickly lock the phase of realization.)

说明：  电力系统的牛顿-拉夫逊法潮流计算。 基本步骤： （1）形成节点导纳矩阵 （2）将各节点电压设初值U， （3）将节点初值代入相关求式，求出修正方程式的常数项向量 （4）将节点电压初值代入求式，求出雅可比矩阵元素 （5）求解修正方程，求修正向量 （6）求取节点电压的新值 （7）检查是否收敛，如不收敛，则以各节点电压的新值作为初值自第3步重新开始进行狭义次迭代，否则转入下一步 （8）计算支路功率分布，PV节点无功功率和平衡节点柱入功率。(Power system of Newton- rafer Johnson flow calculation method-matlab)

MATLAB函数库查询辞典,方便查询各种函数(MATLAB function queries dictionary, easy access various functions)

image proceesing packet no1