cognitivel

This program apply decimation on a speech file.

飞行品质飞行性能的计算和仿真的模拟，对飞机的性能进一步分析(Flight quality flight performance calculation and simulation of the simulation, further analysis on the performance of the aircraft)

In a normal communication channel, it is often desirable to concentrate the information in as narrow a region of the frequency spectrum as possible in order to conserve available bandwidth and to reduce power. The basic spread spectrum technique, on the other hand, is designed to encode a stream of information by spreading the encoded data across as much of the frequency spectrum as possible. This allows the signal reception, even if there is interference on some frequencies. While there are many variations on spread spectrum communication, we concentrated on Direct Sequence Spread Spectrum encoding (DSSS). The DSSS method spreads the signal by multiplying it by a chip, a maximal length pseudorandom sequence modulated at a known rate. Since the host signals are in discrete-time format, we can use the sampling rate as the chip rate for coding.

说明：  灰色预测的实现代码，包括总开始计算到后面的各种检验，残差检验、后验差检验等(Gray prediction code, including the total start to the back of a variety of test, the residual test, a posteriori differential test)

RSA Encryption and Decryption using Matlab by Thunyawat Rajatasereekul and Voranon Kiettrsalpipop ECE575, Winter 2002, Oregon State University Prof, Cetin Keya Koc The program set contains thirteen files listed below. errormeg.fig errormsg.m helpmsg.fig helpmsg.m inputmsg.fig inputmsg.m mesgcut.m pro2.fig pro2.m rsacore.m readme.txt screenshot.gif In order to run the program please call pro2.m under Matlab 6.0 Environment. System Requirement Matlab version 6.0 and if necessary, Maple version 6.0 on any platform PentiumII 300 MHz or equivalent.(RSA Encryption and Decryption using Matlabby Thunyawat Rajatasereekul and Voranon KiettrsalpipopECE575, Winter 2002, Oregon State UniversityProf, Cetin Keya KocThe program set contains thirteen files listed below.errormeg.figerrormsg.mhelpmsg.fighelpmsg.minputmsg.figinputmsg.mmesgcut.mpro2.figpro2.mrsacore. mreadme.txtscreenshot.gifIn order to run the program please call pro2.m under Matlab 6.0 Environment.System RequirementMatlab version 6.0 and if necessary, Maple version 6.0 on any platformPentiumII 300 MHz or equivalent.)

reading raw sar data

说明：  老外的电机学教材，最为重要的是有相应的MAtlab代码，每一章都有，十分详细，学习电机的必备工具书，文件是在太大，此处上传chap5的源码(Foreigners motor learning materials, the most important thing is there is a corresponding MAtlab code, each chapter has a very detailed study of the motor necessary books, documents are too large to upload chap5 source code here)

kk飞控的程序，kk飞控是一款低端的很廉价的很好的飞控程序。适合初学者玩多轴飞行器。(kk flight control procedures, kk flight control is a very cheap low-end good fly control program. Suitable for beginners to play multi-axis aircraft.)

基于SimMechanics的刚体系统建模masslessfourbar案例(SimMechanics modeling)

Matlab Simulink simulation of a single phase cyclo converter.