RungeKuttaMethod-DifferentialEquations

digital watermarking is a process by which a user-specified signal is hidden or embedded into another signal , for example digital content such as electronic documents, images, sounds and video [2]. The use of digital video applications such as video-conferencing, digital television, digital cinema, distance learning, videophone, and video-on-demand has grown very rapidly over the last few years. Today it is much easier for the digital data owners to transfer multimedia data over the internet, and hence the data could be perfectly duplicated and rapidly redistributed on a large scale. Thus, the importance of copyright protection for multimedia data has become more critical. Digital watermarking is an effective way to protect the copyright of multimedia data even after its transmission there is urgent demand for techniques to protect the original digital data and to prevent unauthorized duplication or tampering.

Space-phasor model of induction motor

Hough Transform for Iris

此为三相正弦波PWM逆变器电路，由IGBT元件构成，可实现三相逆变仿真。(PWM inverter)

daqaxis help for national instruments

说明：  数据经过多进制QAM调制下，通过高斯信道的误码率比较(the rand data are modulated by MQAM ，then pass the gausschannel ，get the compared result of ber.)

用matlab画的粉色玫瑰花，很逼真，有兴趣的可以看一下(Matlab painting pink roses, very realistic, are interested can look at)

说明：  薛定宇教授编写的分数阶工具箱，适合新手入门(Professor xue dingyu prepared the fractional level toolbox)

这是一个非常好的用于OFDM的基于CP的 最大似然符号定时同步和载波同步的MATLAB仿真程序，经本人深入阅读吸收经典文献，反复编程调试而提炼而成，代码精炼有序，绝对没有错误，由此程序仿真得到的同步曲线与经典文献完全一致。同仁们阅读此程序一定受益匪浅！ 这里不吝成果，特上载与诸位网友共享。也欢迎同仁们提供更多的优秀程序。 由于文献要求采用N＝1024个子载波的OFDM，运行此程序需2分钟－3分钟的时间。 (This is a very good CP for OFDM-based maximum likelihood symbol timing synchronization and carrier synchronization of the MATLAB simulation program, after I read the absorption of classical literature in depth, repeated programming and debugging derived, code refining orderly, absolute no mistake, this process has been synchronized simulation curve is fully consistent with classical literature. Tongren have read this procedure will definitely benefit! Spared the outcome here, especially to upload to share with you friends. Tongren also welcome to provide more excellent program. Documentation required as a result of N = 1024 sub-carrier OFDM, to run this process will take 2 minutes-3 minutes.)

Seismic Analysis Code，简写为SAC，是天然地震学领域使用最广泛的数据分析软件包之一(Natural seismology field s most widely used data analysis software One package)