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jgraphx-master
jgraphx-master 开源的图形界面设计(jgraphx-master open source graphical interface design)
- 2012-11-30 12:41:12下载
- 积分：1
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random-wave-simulation
基于pm谱的随机海浪仿真，能绘制出海浪的时间历程曲线。(The random wave simulation, based on PM spectrum can draw the time history curve of the wave.)
- 2015-04-08 11:06:23下载
- 积分：1
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DXF文档详解
说明： DXF文件格式说明，包中包含了dxf文件的所有组码的解释(DXF file format description)
- 2020-06-20 13:20:01下载
- 积分：1
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getcolor
说明： java颜色获取和调色源码，功能不是特别强，但是简单实用(java color palette to access and source, function is not particularly strong, but simple and practical)
- 2008-10-01 06:23:26下载
- 积分：1
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smith
smith圆图及阻抗匹配等相关应用，附有详细的代码(Smith Chart and impedance matching smith and other related applications, with detailed code)
- 2009-01-01 13:55:42下载
- 积分：1
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VB三维物体图形绘制演示程序
vb运行的三维演示程序例程，显示三维图的(Three dimensional demonstration)
- 2021-02-08 09:49:55下载
- 积分：1
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频率格纸
说明： 海森频率格纸的绘制、绘制P-III频率曲线(Drawing P-III frequency curve with Hessian frequency grid paper)
- 2020-10-21 01:17:24下载
- 积分：1
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Ev
说明： 电动汽车充电桩的三种充电方式，现在很热的研究方向，仅供大家参考(Electric car charging pile of three charging methods, now very hot research direction, for your reference only)
- 2017-02-13 10:40:45下载
- 积分：1
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Wind-Power-PPT
2012年5月PSCAD/EMTDC电力仿真技术交流会的PPT，是学习风电的很好资料(May 2012 PSCAD/EMTDC power simulation technology Seminar PPT is a good learning wind power)
- 2012-10-14 20:51:13下载
- 积分：1
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FrequencyDomainAnalysisOfTheSystem
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)
- 2010-01-27 16:23:22下载
- 积分：1
