HAPF_droop093002

说明：  PSCAD仿真软件下搭建的DVR模型！！(PSCAD simulation software to build the model of the DVR! !)

DDA方法的绘制直线 圆的绘制 曲线的绘制等(tu xing xue)

基于孤岛模式下的PSCAD下垂控制模型，仅供参考学习(PSCAD islanding mode droop control model based study for reference purposes only)

使用C#实现的一个绘图程序，在绘图结束后双击鼠标会得到一条跟踪的直线(Using C# implementation of a drawing program, double-click in the drawing after the end of the line will get a tracking)

有100个数据点,知道x,y,z的坐标,用命令把这些点拟合成空间的曲线?看点的分布应该是螺旋线,得出一个表达式来表达曲线,有程序(Has 100 data points, know that x, y, z coordinates, using the order of these points to be synthetic curve space? Highlight the distribution should be a spiral line, derived an expression to express the curve, the procedure has)

关于固高运动控制卡T曲线运动模式程序的例子(About Googol motion control card T curves sport program)

说明：  用VC++编写，MFC文档框架，是一个简易的画图小程序，在文档界面上画图(With VC++ Prepared, MFC framework document is a simple drawing of small procedures, the document interface drawing)

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)

cad提取文字坐标 能提取文字所在点的坐标值并保存到text中 (cad text extraction coordinates coordinates of the text can be extracted and saved to the point where the text of the)

说明：  用matlab实现画圆，采用bresenham的画圆方法，内含代码还有文档(Draw a circle with matlab implementation, using bresenham the Circle method, there is a document containing the code)