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cablageOSN
OSN cablage example
- 2010-02-07 07:28:19下载
- 积分:1
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Active-Vibration-Control
good document about active vibration control
- 2015-02-03 06:00:54下载
- 积分:1
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rov_design_analysis
example of matlab,optimization method which is used with different model.it will be useful for whom they want to learn Matlab by themselves8
- 2020-08-30 12:48:12下载
- 积分:1
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MFC
Gauss and Rayleigh_simulation_matlab.
- 2010-11-21 17:19:04下载
- 积分:1
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8
说明: 《MATLAB 7.0编程基础基础》源程序,适合初学者使用,第8章(" MATLAB 7.0 programming foundation base" source, suitable for beginners, Chapter 8)
- 2011-06-13 17:44:22下载
- 积分:1
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MEMS_ARMA
说明: MMES陀螺信号的ARMA模型分析,运行通过了,并有卡尔曼滤波。(MMES gyro signal analysis of ARMA models, run through the, and Kalman filtering.)
- 2008-09-16 14:00:14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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Software-Berenger
Berenger的新书perfectly matched layer for electromagnetics中计算各种PML反射系数的程序(Berenger' s new book, perfectly matched layer for electromagnetics to calculate a variety of PML reflection coefficient of the process)
- 2009-12-28 18:59:42下载
- 积分:1
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melfb
Determine matrix for a mel-spaced filterbank(Determine matrix for a mel-spaced filterb Sv)
- 2006-12-26 19:39:09下载
- 积分:1
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function
MATLAB的一些基本function代码(Some basic function of MATLAB code)
- 2014-09-21 17:14:53下载
- 积分:1