active_butterworth

说明：  lz 编码，自带图片，求图像的lz编码，绝壁有效(it s a answer to lz codes.)

多输入多输出预测控制的源代码。里面有文章和相应的程序。有的程序可以运行，有的可能需要修改。(Multiple input multiple output predictive control of source code. There are articles and the corresponding program. Some programs can run, some may be modified. )

说明：  基于MATLAB的信号处理，2FSK的产生和解调(Signal processing based on MATLAB, generation and demodulation of 2FSK)

本代码是关于多天线技术空时块编码的通信系统仿真源程序，其中包括QPSK调制，QPSK解调，FFT,IFFT，STBC等模块,并给出误码率计算和性能仿真图。(The code is on the multi-antenna space-time block coding techniques of communication system simulation source code, including QPSK modulation, QPSK demodulation, FFT, IFFT, STBC and other modules, and gives the bit error rate and performance simulation map.)

Data Mining, for calculating Correlation, Euclidean distance, and cosine similarity, between objects and attributes.

说明：  迹线法二维求轮轨接触点以及几何参数 ，输入轮廓面参数即可，里面有详细介绍。(The Geometrical Contact between Track and Wheelset)

针对网上出现的ctrl+a出现真相，用matlab实现了仿真具体检程序(Appeared on the Internet for the ctrl+ a the truth emerged, with matlab simulation to achieve the specific review procedures)

matlab编写的一个音频加密的程序，格式要求wav的形式，有运行结果。(matlab prepared an audio encryption procedures, the form of wav format requirements, and the results.)

介绍了空间电压矢量调制异步电动机控制系统的资料，对做此方面的人员有较大的帮助。(Describes the space voltage vector modulation induction motor control system data, and to do this in a larger staff to help.)

matlab work of matrix converter.......................