experiment1

wlan信道仿真模型，考虑了各种不同场景下的信道变化(wlan channel simulation model, taking into account various channel change under different scenarios)

最优化计算方法常用程序汇编，参考价值很大(failed to translate)

迹线法计算轮轨几何关系程序，用于轨道车辆动力学计算，非常实用！(Trace method to calculate the relationship between wheel and rail geometry procedures, for the track vehicle dynamics calculation, very useful!)

说明：  generate white noise

the steps of fuzzy c means algorithm which is coded in matlab

对录音信号集 中的某一语音，利用BATLAB设计一美尔例谱算法，并实现。 取信号集 中的一个语音信号：“xxxxxx”，将它作为输入的语音信号来为设计一个美尔倒谱算法，在该算法中，主要设计了以下环节： 1.读入一个语音信号；2.对这个信号归一化；3.对归一化的信号进行加窗处理（这里的矩形窗长度必须为257，重帧长64）；4.进行预加重处理，即通过一个高通滤波器： ；5进行512点的FFT；6.分别取模平方得到功率谱；7.在设计的mel滤波器组中，我采用了25个带通滤波器；8.将得到的功率谱信号通过mel滤波器组，得到相应的25个功率值；9.对这些功率值取自然对数；10.对这些值取离散作弦变换；11.将得到的值去掉直流分量，取其它值作为MFCC参数。 (Concentrated on recording a voice signal, using BATLAB designed Mayer cases spectral algorithm, and implementation. Get a voice signal signal focus: "xxxxxx", will it as input for the design of a voice signal to Mel Cepstrum algorithm in the algorithm, the main design of the following links: 1. Read a speech signal 2. On the signal normalized 3. Of the normalized windowed signal processing (here, rectangular window length must be 257, re-frame size 64) 4. For Pre-emphasis processing through a high-pass filter: 5 for 512 points of FFT 6. modulo square were obtained spectrum 7. in the design of mel filter banks, I use a 25 band-pass filter 8 . will be the power spectrum signal by mel filter bank, corresponding to the 25 power values 9. on the power to take the natural logarithm value 10. to take these values as strings of discrete transform 11. will be of value to out DC component, to take other values as MFCC parameters.)

关于调频信号的仿真的演示,利用matlab实现卫星调频信号的仿真和演示(Demo on the FM signal simulation using matlab satellite FM signal simulation and demonstration)

说明：  二维艾里光束，阵列艾里光束，可改变光束直径以及距离(Two dimensional Airy beam, array Airy beam, variable beam diameter and distance)

说明：  新型的基于边缘指导的图像插值算法，matlab代码。可以用用，效果不错。(new edge-directed interpolation. IEEE. codes.)

运用主成分分析法和K均值聚类法来进行SAR影像变化检测(SAR image change detection using principal component analysis and K-means clustering)