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说明：  声波方程正演模拟大模型样例。 包含三个地质层，分别对应速度可以自行修正。 震源函数是雷克子波。 C源程序，输出结果Matlab绘制。(Acoustic wave equation forward modeling big model of the sample. Consists of three geological layers, corresponding to the speed you can correct itself. Lake wavelet source function is. C source code, the output of Matlab draw.)

利用matlab对短时信号进行短时能量分析，频谱分析，以及短时傅里叶变换。(Use of matlab for short-term energy of the transient signal analysis, spectrum analysis, and short time Fourier transform.)

Three phase high frequency isolated DC-DC converter (published in ELSEVIER)is simulated under symmetrical open loop control. It provides Low voltage conversion ratio, isolation, good regulation with fast dynamic response.

this is ecg preprocesing in ecg beats

使用PAST算法进行子空间分析，MUSIC算法进行频率估计，实现了对信号的频率跟踪(Using the PAST subspace analysis algorithm, MUSIC frequency estimation algorithm to achieve the signal frequency tracking)

Windpower technology dates back many centuries. There are historical claims that wind machines which harness the power of the wind date back beyond the time of the ancient Egyptians. Hero of Alexandria used a simple windmill to power an organ whilst the Babylonian emperor, Hammurabi, used windmills for an ambitious irrigation project as early as the 17th century BC.

产生正态变量的随机数,进行未知参数的区间估计 产生两个正态总体的随机数, 进行未知参数均值差,方差比的区间估计.( generate normial variable, estimate unknown paramatric interval )

时间反转镜的源程序，针对多径时延，给出了时反后的结果(Time reversal mirror source for multi-path delay, given the results after the anti-)

这是一个利用matlab求解光波导折射率与其波导深度的模拟程序，利用的是wkb法(This is a use of Matlab for its optical waveguide refractive index waveguide depth simulation program, wkb use of the law)

speed control of PMSM