BP-neural-network

One of Biometrics fields is face recognition & face expression recognition ... 1- In face recognition .. we need to design authentication program by training a neural network ,there are two source codes..one of them is based on Discrete Wavelet Transform with Perceptron Neural Network.. and the other based on Discrete Cosine Transform with Perceptron Neural Network ... 2- In face expression recognition .. we defined the condition of the person (nature,happiness,disgust or anger) this source code is based on Principle component analysis(PCA) .. * we need to now about digital image processing ,neural network and PCA...

这是一个用MATLAB编程的64QAM程序，希望大家多提意见。(This is a 64QAM using MATLAB programming procedures, hope that we do so.)

本文档分别采用A律和U律进行PCM的解码。(This document use A_law and u_law to decode the PCM code.)

Adam bash forth predictor and corrector method.

this is coding of dwt in matlab

encoding and decoding based on arithmatic operators may be used for compression

Simulink model of DFIG dc-grid

This paper deals with analysis of main functional diagrams of step PID controllers for electric motor-driven actuators. The main formulae to calculate the parameters of the diagrams of step PID controllers are presented in the paper. The influence of these parameters on the transient processes in step controllers and on the output position of the actuator is analyzed. Transient processes in step controllers with motor-driven actuators are simulated in PI and PID control mode. These transient processes are compared to the transient processes in continuous controllers. The accuracy of step PID controllers is analyzed, and restrictions on the parameters of step PID controllers are presented. The diagrams of step PID controllers considered in this paper can be implemented in the up-to-date PLCs software for automatic control using the electric motor-driven actuators in the control loops.

混沌跳频序列性能测试 汉明相关性 间隔特性 平衡性(Testing chaotic FH sequences interval Hamming correlation properties balance)

一种pid控制算法在带小时滞的二阶梯振荡环节控制系统上的应用.(a pid control algorithm with a small delay in the two ladder oscillation link control system applications.)