retinex

说明：  该程序是在matlab中利用窗函数法设计滤波器的示例(The program is using the window function matlab filter design example)

在数学建模培训中，降落伞问题很是突出，联系此题对同学有很大的提高，从而程序也很重要。所以发此文件。(Parachute Su snow modeling program title race body)

两个变量GPCmatlab程序，调试运行成功(too variable gpc matlab program)

用matalab成功实现多元线性回归，简单可行，相信能给大家带来方便。(Matalab with the successful implementation of multiple linear regression, simple and feasible, I believe that can bring convenience to everyone.)

本程序中得到的收端OFDM信号的频谱波形，是与其发端信号的排步有关的。在发端的 ％ 载波安排上，128个载波有前后各32个载波是null载波(如果这前后各32各载波是带外频段， ％ 那么理论上它们都应该是零！)，中间的64个载波是数据载波。这样的排步很明显就是一个 ％ 两边低，中间高的频谱形式。所以，收端也应该是这个轮廓。 (this process the resumption end of the spectrum OFDM signal waveform, with the originator of the signal further on the row. The originator% carrier arrangements, 128 of the carrier after a 32 carrier is null carrier (if it was around the 32 is the carrier frequency band. % then theoretically they should be zero!) the middle 64 carrier data carrier. This arrangement is obviously further 1% lower on both sides, in the middle of the spectrum form high. Therefore, the admission should end this profile.)

Flood fill, also called seed fill, is an algorithm that determines the area connected to a given node in a multi-dimensional array. implementation in matlab

CDMA系统中的Rake接收算法，请大家参考。(CDMA systems Rake receiver algorithms, please refer to.)

对非平稳信号进行分段、截取，再对处理过后的短时信号做短时傅里叶变换，分析其频谱特性，并找到各个时间节点的频率特性，以便分析不同事件段内的声音特征。(The nonstationary signals are segmented, and then the interception, the short-time signal after processing the short-time Fourier transform, the analysis of the spectrum characteristics and frequency characteristics and find the different time node, in order to analyze the acoustic characteristics of different event period.)

采用卡尔曼滤波技术对航位推算系统进行仿真。以小车在匀速运动为例，分两个方向分析。(Kalman filtering technique of dead reckoning system simulation. In the car in uniform motion, for example, in two directions analysis.)

基于matlab的卷积积分 有具体的程序和分析说明 对大家很有用(Based on the convolution integral matlab there are specific procedures and analysis for all of us very useful)