Question

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...

11 månader ago | 0 answers | 0

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...

ungefär ett år ago | 0 answers | 0

Question

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);...

nästan 4 år ago | 0 answers | 0

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...

ungefär 4 år ago | 1 answer | 0

Question

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 ...

mer än 4 år ago | 2 answers | 0

Question

How to identify and retrieve the grain and its size from photo?

<</matlabcentral/answers/uploaded_files/54192/1.jpg>>

mer än 4 år ago | 1 answer | 0

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! <...

nästan 5 år ago | 1 answer | 0

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...

ungefär 5 år ago | 1 answer | 0

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...

ungefär 5 år ago | 1 answer | 0

Question

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...

nästan 6 år ago | 2 answers | 0

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(...

nästan 6 år ago | 3 answers | 0

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 ...

nästan 6 år ago | 0 answers | 0

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...

nästan 6 år ago | 0 answers | 0

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...

nästan 6 år ago | 0 answers | 0

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...

nästan 6 år ago | 0 answers | 2