wrfout.2019010812.ctl

代码是关于Peano-Hilbert曲线算法，属于图形学范畴(Code is on the Peano-Hilbert curve algorithm, belongs to the category Graphics)

MFC做的画图软件 只能画直线 还有待改进 适合初学者 看看(MFC do draw a straight line drawing software can be improved for beginners look)

联合对角化方法,用于对多个矩阵同时进行联合对角化,主要用处是盲源分离,(Joint diagonalization method, is used to conduct joint diagonalization matrix at the same time for multiple, main use is to blind source separation,)

变压器励磁涌流，剩磁的表示方法，pscad模型，涌流抑制,psc文件。(Transformer inrush current, representation remanence, pscad model, surge suppression.)

数字图像矩阵数据的显示及其傅立叶变换 二维离散余弦变换的图像压缩(Digital image display and its Fourier transform matrix data Two-dimensional discrete cosine transform of image compression)

基于matlabsimulink的双PWM逆变器仿真,不错的源码(Based on the double PWM inverter simulation matlabsimulink, good source)

观察Autocad内部数据组织的最佳工具,这个对应Autocad2(observation Autocad internal data organization the best tools, and corresponding Autocad2)

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)

Cadence Allegro 中文教程(Cadence Allegro Chinese tutorial)

自动绘制保护煤柱,CAD 二次开发的，输入参数后，自己就绘制出来了(Automatic drawing protection pillar, CAD secondary development)