toushelv

UWB，超宽带信号分析必用的子函数，第19部分！(UWB, ultra-wideband signal analysis will be used to Functions, Part 19!)

système à retard PID

power system stabilizer model in matlab

This control system has been successfully applied in some 750mm hot strip mill. The actual record curves indicate that the dynamic feedforward strategy can do well in controlling the tail temperature. And the FuzzyPI-Smith system can get better dynamic characteristic and effectively overcome the problems by pure lag with the traditional

DTMB，全称Digital Television Terrestrial Multimedia Broadcasting。上述资料包含了最新标准，及链路级仿真matlab代码(Digital Television Terrestrial Multimedia Broadcasting)

用于简单的最小二乘拟合演示和简单的拉格朗日插值、线性插值等的演示小程序(For simple presentations and simple least squares fit of Lagrange interpolation, linear interpolation demo applet)

小波滤波的构造实现，以及阈值的设定，小波重构与分解。在各种滤波参考运用，程序放在word中的(Wavelet filter construction and de-noising process)

matlab实现车牌识别，具有较好的识别效果 (achieve matlab license plate recognition, with better identification of the effect of)

基于 BP 神经网络的高压潜水电机绝缘寿命预测,俺是初学者，这是花钱下载的，比较前沿，希望对各位有用。(High Voltage Submersible Motor Insulation Life Prediction Based on BP Neural Network )

A polyalphabetic cipher is any cipher based on substitution, using multiple substitution alphabets. The Vigenère cipher is probably the best-known example of a polyalphabetic cipher, though it is a simplified special case.Polyalphabetic substitution ciphers are useful because the are less easily broken by frequency analysis, however if an attacker knows for instance that the message has a period n, then he simply can individually frequency analyze each cipher alphabet. The number of letters encrypted before a polyalphabetic substitution cipher returns to its first cipher alphabet is called its period. The larger the period, the stronger the cipher. Of course, this method of encryption is certainly not secure by any definition and should not be applied to any real-life scenarios.