frequencydomain

用表上作业法求解运输问题，基于matlab的算法实现(Tabular method procedures)

Data Encryption by Matrix Multiplication We will only use numbers 0 to 26 for the encryptive mathematics operation. Numbers from 1 to 26 are for letters from A to Z and 0 is for all non-letter characters. To minimize usage of numbers, all letters are converted to upper case. The original message is converted to number array according to the ASCII table and minus 64. We partition whole array into blocks of 8 numbers. The last block may be added several zeros. Then multiply each block by the an 8x8 matrix A which is invertible in Z27 to get cipher data. The decryption is the same process except to use its inverse matrix B. For good visual reading, we convert all non-letter characters to under score for the decryption.

matlab code for speech in vlsi

Objective of the program is to solve for the steady state voltage distribution of the inside region of a microstrip and then using that obtain the electric field distribution in the region using quiver plot. The microstrip comprises of a region given by 0<x<7 units and 0<y<2 units in the coordinate system bounded by four capacitor plates on all the sides of the region. The region comprises of a material with relative permittivity 1 from 0<y<1 units and a material of relative permittivity 9.6 from 1<y<2 units. The microstrip extends indefinitely in the z-direction. The sides of the region are given Dirichlet boundary condition. A horizontal microstrip line is placed at the center of the region. The microstrip is excited with a voltage of 1 Volt and all surrounding plates are maintained at 0 Volts.

这是很实用的一个matlab的录音界面小程序，经行语音录制，分析等。(This is a very useful little program matlab recording interface, the line of voice recording and analysis.)

说明：  此代码通过模拟退火算法优化BP神经网络进行汇率预测(This code optimizes BP neural network to predict exchange rate by simulated annealing algorithm)

说明：  基于空间矢量电压算法的SVPWM控制模型，对于电机控制建模有很好的帮助作用。(Algorithm based on space vector SVPWM voltage control model, for motor control modeling are very helpful.)

数学建模LINGO软件学习教程1，对数据优化极大值求解有独特算法(Software learning tutorial )

较简单的分级聚类，将一个样本空间分为两类(Relatively simple hierarchical clustering, a sample was divided into two categories)

模拟WSCC 9公交系统。我已经做了这个系统与标准数据。如何在Matlab环境下对模拟输电线路的参数(电阻、电抗和电纳)是由分布参数与平衡负载流。千瓦&千乏的发电机的参数转换成KVA和Matlab仿真千伏。(This simulation is of WSCC 9 Bus System. I have made this system with standard datas. How ever for simulating in Matlab environment the parameters of transmission lines ( Resistance , Reactance and Susceptance ) are taken by distributed parameters with balance load flow. The Parameters of generators in KW & KVAR are converted into KVA and KV for Matlab simulation. )