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modle-1
多个电力电子、电机仿真模型。是重要的学习电力电子simulink 仿真的素材,权威教材,内容较多,分成上下两集,这个是上(useful simulink modles for leaners)
- 2012-05-03 20:44:30下载
- 积分:1
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pauli
极化SAR,pauli分解San Francisco地区RGB合成图(Polarization SAR Pauli decomposition San Francisco RGB composite image)
- 2013-04-21 18:09:39下载
- 积分:1
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isoparametricelement
本程序采用8结点四边形单元,分析固定位移边界条件的弹性力学平面问题(This procedure using 8-node quadrilateral element, analysis of fixed displacement boundary conditions of the plane problem in elasticity)
- 2008-04-18 10:04:08下载
- 积分:1
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03607_28
DFT进行频谱分析时的三种现象
1、混叠:对连续信号采样,要求连续信号是带限的,采样频率要足够高。Fs应满足Nyquist采样定理才不产生混叠。
采样前加低通滤波器防混叠
2、频谱泄漏:DFT对时域信号进行了截断(相当于采样信号乘了一个窗函数),时域的乘积相当于频域卷积,改变了原信号频谱。
改用其他窗函数(非矩形)改善泄漏。
3、栅栏现象:DFT 只给出了频谱在采样点上的取值,采样点间的频谱内容丢失。(DFT spectrum analysis of a three phenomena, aliasing : continuous signal sampling, requiring continuous signal is band-limited, the sampling frequency should be high enough. Fs meet the Nyquist Sampling Theorem would not have aliasing. Sampling former low-pass filter plus anti-aliasing 2, spectrum leakage : DFT right time domain signal a disconnect (equivalent to a sampling signal by a window function). time domain is equivalent to the product of frequency-domain convolution, changes in the spectrum of the original signal. Window functions to switch to other (non-rectangular) to improve leakage. 3, fenced phenomenon : DFT spectrum is given only at the sampling point value, sampling points of the spectrum as lost.)
- 2007-05-08 16:22:17下载
- 积分:1
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OFDM_
ofdm系统的源代码,非常有用。希望帮到大家(ofdm system source code, very useful. Hope to help everyone)
- 2012-07-18 20:21:18下载
- 积分:1
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Chan
说明: Chan算法,可以用于求非线性方程组的解(Chan algorithm for solving non-linear equations)
- 2010-04-09 11:00:32下载
- 积分:1
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analysis
根据水位过程线,分析全场的潮汐调和常数图,20个字(According to the water level hydrograph analysis audience tidal harmonic constants map, 20 words)
- 2013-10-30 19:03:41下载
- 积分:1
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FUZ
fuzzy PID vs PID controller
- 2015-04-14 21:45:06下载
- 积分:1
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tuxaingchulishiiyan
说明: 对一副测试图像进行加各种噪声,然后进行多帧平均,中值滤波,均值滤波,维纳滤波,理想低通滤波,巴特沃斯低通,带通滤波,自适应滤波九种方法处理,并分析结果,得出各种滤波方法的优缺点。包括实验报告(Plus a pair of test images of all kinds of noise, and then multi-frame averaging, median filtering, mean filtering, Wiener filter, the ideal low-pass filter, Butterworth low-pass, band pass filtering, adaptive filtering nine kinds of approach and analyze the results, obtained the advantages and disadvantages of various filtering methods. Including the lab report)
- 2011-03-30 21:37:44下载
- 积分:1
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chap8
适合大家的学习滑模变算法,刘金琨老师书上的例子。(Sliding Mode algorithm suitable for all learning, Liu Jinkun teacher book example.)
- 2013-04-16 15:26:14下载
- 积分:1