mmcjunyatest

pscad简单分压模型。包含电压表和电流表，实时显示波形(pscad simple voltage divider models. Includes voltmeter and ammeter, real-time waveform display)

说明：  pscad 燃气轮机暂态模型。与电网相联(pscad gas turbine transient model is very practical.)

著名画图程序 gnuplot 的几个例子(The samples for gnuplot to plot figure used in LaTeX, export EPS and JPEG.)

绘制lamb波频散曲线，求解兰姆波相速度曲线(Draw the lamb wave dispersion curve to solve the Lamb wave velocity curve)

蜘蛛图逻辑推理系统， 可以通过画图，来输入逻辑定理。 并可视化地完成证明过程。(Spider diagram logic reasoning system )

基于pscad4.5的三相逆变电路 自己实测可用的一个简单例子(Three phase inverter circuit based on pscad4.5 A simple example of their own measured available)

2D图像渲染，比如反走样，mark等效果，编码风格很好，模版用的淋漓尽致(2D image rendering, such as anti-aliasing, mark, such as the effect of good coding style, the template used by most)

poiseuille的LBM模拟，C++，三种边界处理方法。周期、反弹、曲线。(LBM simulation poiseuille s, C++, three border approach. Cycle, rebound, curve.)

MATLAB下绘制三维极坐标图，输入极径和角度范围，还可以选择画图的种类，也可以画等高线图(Draw three-dimensional polar plot using MATLAB.)

信号频谱分析 1. 观测已知方波信号、正弦波信号的频谱 分析频率为4KHz、8KHz的占空比为50 的方波信号、正弦波信号的频谱。记录所得频谱图。 观测实时模拟信号（语音）的频谱 用音频设备采集一段语音，将语音存为.wav格式。对wav文件作分段傅里叶变换分析。语音是分音节的，应把它分段分析，而且实际运用中的数字信号处理的FFT的点数是有限的，一般只能达到千点。用傅里叶反变换IFFT，从频域恢复信号。画出频谱图和语音波形图(Signal spectrum analysis 1. Observing a known square-wave signal, sine wave signal frequency spectrum analysis 4KHz, 8KHz for the 50 duty cycle square wave signal, sine wave signal frequency spectrum. The recorded frequency spectrum. Observing real-time analog signal (voice) of the spectrum collected with the audio devices section of voice, voice saved as. Wav format. Wav file of the sub-Fourier transform analysis to make. Speech is divided into syllables, it should be sub-analysis, and practical application of digital signal processing of the FFT points is limited, generally only reach 1000 points. Fourier inverse transform IFFT, to restore the signal from the frequency domain. Draw maps and voice waveform spectrum)