Experiment_fcw

Adaptive filter 三种演算法RLS,LNS sign error LMS(three RLS algorithm. LNS sign error LMS)

it presence the effect of stiffness variation in active air_suspension system.

本代码利用同态滤波算法来对图像进行处理，从而实现增强图像质量，使用的是matlab环境(this code is used to accomplish the image enhancement , using homomorphic filtering aglorithm)

image watermarking method

A Survey on Cooperative Diversity for Wireless Networks

Modulation Index and varying carrier frequency for PWM inverter with outputs

基于matlab实现16QAM调制系统及其性能分析(Based on matlab realize 16QAM modulation system)

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.

matlab时频分析工具箱，时频分析需要(Matlab time-frequency analysis toolbox, time-frequency analysis needs)

说明：  在matlab下，运用矩量法计算长直导线电容，并分析电容随导线长度，半径，分段数的变化(In matlab, Compution of a long straight wire capacitance with MOM , and analysis of capacitance with the wire length, radius, segment number of changes)