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Kathleen


Signal Con.

Last seen: plus d'un an il y a |  Actif depuis 2015

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How to calculate the power spectra by the power spectra?
Dear Colleagues, If I have signals A and B, respectively, and how to calculate the power specra of A by the power spectrum...

plus de 4 ans il y a | 1 réponse | 0

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Question


How to compute the phase shift
Dear Colleagues, I want to analyze the transfer function of signal A response to signal B, but I don't know how to calcua...

presque 5 ans il y a | 1 réponse | 0

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Cross-Correlation to obtain lag time and correlation coefficient in different periods
Dear Colleagues, I have written code that produces a graph giving the xcorr coeff of two signals: s1 and s2. % x=(s1); y=(s2);...

plus de 7 ans il y a | 1 réponse | 0

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Question


How to detect & remove steps from signal?
Dear Colleagues, Given the signal shown in Fig.1, what is the best way to detect and remove the steps from the signal? The proce...

presque 8 ans il y a | 1 réponse | 0

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Who have visibility graph algorithm (Matlab code)? I'm looking for the code but have not found it.
Who have visibility graph algorithm (Matlab code)? I'm looking for the code but have not found it. Ref.: _Lucas Lacasa, et ...

environ 8 ans il y a | 3 réponses | 0

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réponses

Question


How to identify and retrieve the grain and its size from photo?
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plus de 8 ans il y a | 1 réponse | 0

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Question


How to define visibility graph criterion in matlab code
Dear colleagues, Could you give me assistances? How to define visibility graph criterion in matlab code? Many thanks! <...

plus de 8 ans il y a | 1 réponse | 0

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Question


How can I plot the PSD spectrogram like this figure?
Dear Colleagues, I want to plot the PSD spectrogram like the following figure, could you give me some advices? Any help wil...

presque 9 ans il y a | 1 réponse | 0

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Question


How to write data in an appointed data format?
Dear colleagues, I have a column data: 44566 44567 44568 44565 44566 4565 44563 99999 44561 44...

presque 9 ans il y a | 1 réponse | 0

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How to compute sliding or running window correlation coefficient?
Dear colleagues, I want to compute the sliding or running window correlation coefficient. I have read related papers, the fo...

plus de 9 ans il y a | 2 réponses | 0

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Question


how to compute running correlation coefficient
Hi, I'd like to calculate a 'running' correlation coefficient of two variables. t seems that my problem is that the corrcoef(...

plus de 9 ans il y a | 3 réponses | 0

3

réponses

Question


How to calculate computing correlation coefficients with a sliding window?
Hi, I have two time series data, for example: t=0:0.01:1; y1=sin(2*pi*5*t); y2=-sin(2*pi*5*t); I want to calculate the ...

plus de 9 ans il y a | 1 réponse | 0

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Question


How can I use spectrogram and/or periodogram to plot a Power Spectral Density (PSD)?
Hi Colleagues, I want to plot spectrogram as Fig.1. How can I illustrate the colorbar in PSD (in dB)? Support on this would...

plus de 9 ans il y a | 1 réponse | 0

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Question


Power Spectral Density units
Hello, I'm confused with y axis units of Power Spectral Density show up as Power/frequency (dB/Hz), but in some papers, th...

plus de 9 ans il y a | 1 réponse | 0

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Question


what's the differences between dB/Hz and Hz in the Power Spectral Density.
Dear colleagues, I'm comfused with a smaller issue with Power Spectral Density. In many papers, scientists always use dB in...

plus de 9 ans il y a | 1 réponse | 2

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