Au_44nm_G1

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)

能够对通达信.lc5文件进行修改，主要是修改分钟数，这样可以在两年多的数据中进行画线处理(Mastery letter. Lc5 file to be modified, modify the number of minutes, so you can draw lines in more than two years of data)

说明：  应用matlab实现对平凸透镜的平行入射光线的追踪和仿真(Realize ray tracing and simulation of plano-convex lenses)

简单画图板，初学者实用，比较简单，如果喜欢可以下载来看看(Simple drawing board, beginners practical, relatively simple)

基于PSCAD/EMTDC搭建的双向dcdc，可做参考(Bidirectional dcdc based on PSCAD/EMTDC，provide you a strategy to build DCDC)

基于空间离散点计算的，并联6自由度6-sps构型的工作空间绘制，包含多个计算子程序，便于修改应用于其他构型。(Based on the spatial discrete point calculation, the parallel 6-DOF 6-sps configuration of the workspace is drawn, including multiple calculation subroutines, which are easy to modify and apply to other configurations.)

PSCAD中搭建的输电线路行波故障测距仿真模型，并仿真实现。(Transmission Line Traveling Wave Fault Location in PSCAD build simulation models and simulation.)

一个简单的程序，可以绘制点、线、圆、方。可以保存成一定格式的图片文件。软件最大的问题是绘图基本在对应的鼠标事件里进行，而没有在paint方法里进行，可借鉴。(A simple program, you can draw points, lines, circles, square. Can be saved into a certain format image files. The biggest problem is the graphics software basic mouse events in the corresponding conduct, but not in the paint method in the conduct, we may learn.)

Three phase TCSC with PSCAD

使用python简单提取wrfout数据并绘图。及使用ncl语言提取wrfout数据并绘图(Use Python to extract wrfout data and draw. And use NCL language to extract wrfout data and plot.)