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p0308
采用MATLAB中的函数filter2对受噪声干扰的图像进行均值滤波 P0308:图像的自适应魏纳滤波(MATLAB using the function affected by noise interference filter2 images mean filter P0308: Image Adaptive Weiner Filter)
- 2007-08-13 11:26:48下载
- 积分:1
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mie-matlab
本文对偏振光干涉理论进行了MATLAB 设计与仿真,在分析偏振光干涉现象模型的基础上,运用MATLAB 工具实现了偏振光干涉现象的计算机仿真,使这一抽象而复杂的物理现象变得直观、简单,且容易理解。(Polarized interference theory, design and simulation of MATLAB, polarized interference computer simulation using MATLAB tool based on the analysis of polarized light interference phenomenon model so abstract and complex physical phenomena become intuitive, simple, and easy to understand.)
- 2013-03-13 17:09:23下载
- 积分:1
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filter1
说明: 高通滤波器,带通滤波器,数字FIR滤波器(The Shannon entropy is a measure of the average information content one is missing when one does not know the value of the random variable. The concept was introduced by Claude E. Shannon in his 1948 paper "A Mathematical Theory of Communication".
Shannon s entropy represents an absolute limit on the best possible lossless compression of any communication, under certain constraints: treating messages to be encoded as a sequence of independent and identically-distributed random variables, Shannon s source coding theorem shows that, in the limit, the average length of the shortest possible representation to encode the messages in a given alphabet is their entropy divided by the logarithm of the number of symbols in the target alphabet.
)
- 2020-11-24 19:19:32下载
- 积分:1
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New-Microsoft-Word-Document-(2)
fixpoint matlab design too be short
- 2011-01-26 03:50:04下载
- 积分:1
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b
说明: B样条的编程代码,通过MATLAB生成图形(B-spline programming code, graphics generated by MATLAB)
- 2011-06-01 22:35:39下载
- 积分:1
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自编SOFDTD计算等离子体平板反射透射系数matlab程序
自编SOFDTD计算等离子体平板反射透射系数matlab程序(Self SOFDTD plasma flat reflection and transmission coefficient calculation matlab program)
- 2020-09-22 20:57:52下载
- 积分:1
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CopyOnWriteArrayListTest
Copy On Write Array List Test extends J S R166 Test Case for Andriod.
- 2013-12-30 23:34:03下载
- 积分:1
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Mppt_sfunction
可实现光伏电池板最大功率点的跟踪,使其输出最大功率(PV panels can achieve maximum power point tracking, so that the maximum power output)
- 2011-05-24 16:01:32下载
- 积分:1
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rgb-code
NOTE: This function modifies the BUTTONDOWNFCN of axes in the input list,
and their children. However, it will not modify any object whose
buttondownfcn is nonempty.
- 2014-01-07 18:31:06下载
- 积分:1
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chengxu
小波变换进行变速箱故障诊断
首先将s1和s2信号时域谱(s1代表维修前的振动信号,s2代表维修后的振动信号),画出来进行对比,会发现s1信号的振动幅值会比较高;然后对s1和s2分别进行小波分解并画出各层的时域谱,只对比s1和s2分后的最高时域谱,s2更加的具有周期性,且幅值较小,s2周期性不够明显,且振动过于密集。分析完时域谱后开始分析频谱,首先对原信号s1和s2fft转换,得到频谱图,如图,然后再对小波分析后高频部分进行fft转换,做出频谱图。对比后我们发现,在f 2375HZ出(也就是齿轮的啮合频率),s1信号频谱幅值会有急剧的升高,然后,其谐波的幅值也会增大。所以可以推断出该维修前的增速箱的齿轮可能出现问题。(Gearbox fault diagnosis based on wavelet transform s1 and s2 first time domain signal spectrum (s1 behalf of the vibration signal before maintenance, vibration signal s2 representative of repaired), drawn comparison, you will find a signal s1 vibration amplitude will be higher then s1 and s2 respectively wavelet decomposition and draw the layers of time-domain spectrum to only a maximum time domain spectroscopy s1 and s2 points after, s2 is more cyclical and smaller magnitude, s2 cyclical enough obviously, and the vibration is too dense. End domain spectral analysis after the beginning of the spectrum analysis, the first of the original signal s1 and s2fft conversion to give the spectrum, as shown, and then after the high frequency part of wavelet analysis fft transformation to make spectrum. We found that after the comparison, at f 2375HZ out (i.e. the gear mesh frequency), there will be a sharp increase in the amplitude spectrum of the signal s1, and then, the amplitude of the ha)
- 2017-01-17 19:18:02下载
- 积分:1