質問

TYPE_LINEAR_ACCELERATION - How to use in MATLAB
I Have been looking for an effective way to remove the gravitational acceleration from all axis of an accelerometer that is rota...

10年以上前 | 1 件の回答 | 0

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質問

effect of filter on my signal
I have a signal that oscillates about 12. I want to filter out noise and just zone in on the main peak so I used a butterworth f...

10年以上前 | 0 件の回答 | 0

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質問

Phase difference of two graphs
Is there a function in MATLAB that will give me a value for the phase DIFFERENCE between two graphs. Also if I have created two ...

10年以上前 | 1 件の回答 | 0

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質問

Want to retain location in a histogram plot
I have plotted a histogram using the hist function in MATLAB however, I want to find out the original location of the values in ...

10年以上前 | 1 件の回答 | 0

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質問

Rotate a plot whilst keeping axes the same
Hi there I was wondering if you could tell me how to rotate a plot. I want my axes to the same I want the plot to moveand ro...

10年以上前 | 1 件の回答 | 0

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回答済み
FFT function in matlab
Hey everyone, Well I am playing aound with fourier synthesis and using my spectrum as a guide. I understand that I need to su...

10年以上前 | 0

質問

FFT function in matlab
Hi i just wanted to check out something regarding the fft function in matlab? Does the spectra produced by the fft functi...

10年以上前 | 3 件の回答 | 0

3

回答

質問

Splitting a vector up into unequal sections seperated by zeros
Hi everyone I was wondering if someone could help me split up a vector into sections seperated by zeros. I have alot of data ...

10年以上前 | 2 件の回答 | 0

2

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質問

Splitting up a vector into a matrix
Is there a sophisticated way of doing the following; I have a vector = [ 1 ; 2 ; 3 ; 4 ; 6 ; 10 ; 3 ; 5 ; 3 ] I would like...

10年以上前 | 2 件の回答 | 0

2

回答

質問

Confusion using cumtrapz for acceleration
I have data for a person swinging their leg back and forth, I have this data in the form of acceleration. I have tried using cum...

10年以上前 | 0 件の回答 | 0

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質問

Problems using mmreader with struct
I am trying to use mmreader to upload a video into MATLAB. I am trying to follow the example in the documentation, however at th...

10年以上前 | 1 件の回答 | 0

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質問

Varying Shape extraction from data
I have some data and it traces out a shape of sorts. It varies dynamically however and I am hoping to work out the average shape...

10年以上前 | 0 件の回答 | 0

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質問

Peak filter - trouble using a peak filter to amplify my peak
I am trying to use a peak filter to amplify my peak but for some reason I get an error message ??? No appropriate method, pr...

10年以上前 | 0 件の回答 | 0

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質問

Yulewalk filter - Problems with cleaning spectra
I have decided to use a yulewalk filter to clean up my spectra I would like to zone in on three peaks but I am unable to do this...

10年以上前 | 1 件の回答 | 0

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質問

Make a vector of 1's and zeros
I could like to make a matrix consisting of 1's and zeros at certain points. I have a vector that is made up of two other vector...

10年以上前 | 1 件の回答 | 0

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質問

comb filter - when peaks are not equidistant
I am trying to use a comb filter to clear up my spectra, I would like to get a spectra with peaks that are 20% or more of the ma...

10年以上前 | 0 件の回答 | 0

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質問

time aligning two signal at different sample rates
Most of the techniques I have discovered to time align two signals requires them to be sampled at the same rate. I am aware of t...

10年以上前 | 1 件の回答 | 0

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質問

Frequency band - how to determine this using matlab
I am trying to use a frequency domain technique in order to find displacement from accelerator data I am trying to Convert the ...

10年以上前 | 0 件の回答 | 0

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質問

Integration of accelerations to produce spatial displacement
I am doubly integrating accelerations from a device in order to determine the displacement graph. I have written this code; ...

10年以上前 | 0 件の回答 | 0

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質問

Normalising spectra - pwelch method
I am trying to normalise some frequency spectra that I have created using the FFT. I was wondering how it is done with the pwelc...

11年弱前 | 0 件の回答 | 0

0

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質問

Setting your own threshold for a heatmap
I am trying to create a heat map for my data and I was wondering how I can change the thresholds so that I can input values that...

11年弱前 | 1 件の回答 | 0

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回答済み
Problems with ifft in general
Hi there both! Man apologies for not supplying enough information! So OK my signal is of someone running and so the spectra orig...

11年弱前 | 0

質問

Problems with ifft in general
I am having great difficulty using ifft. Basically when I use it on my original spectrum I do indeed get back to my original sig...

11年弱前 | 2 件の回答 | 0

2

回答

質問

reversing the hamming window
How can I reverse the effect of the hamming window on my signal. I know some transform can be inversed by the use of i ie ifft e...

11年弱前 | 1 件の回答 | 0

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質問

Spectral purity - How can this be caulated in matlab?
Hi there I was wondering if there was an easy way to calculate spectral purity in MATLAB? I have the signal analysis toolbox but...

約11年前 | 0 件の回答 | 0

0

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質問

Area under the peak, clean peak
Hi there folks I am toying with ideas about how to best define the cleanness of a peak. I have some frequency spectra that is...

約11年前 | 0 件の回答 | 0

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質問

Macro help writing fucntion in matlab
Hi there, I know that this is such a simple question but I have read and reread the Q&A section etc and I cant find any help....

約11年前 | 1 件の回答 | 0

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質問

Saving multiple figures to a named folder
Hi there I am running a function using several macros for example function fftval(in,out) x = load(in); % or importdata...

約11年前 | 1 件の回答 | 0

1

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回答済み
Macros in Matlab - repeating simple instructions
Hi guys Thanks so much for the help I also wanted to check something say for example I wanted to plot a graph of y = sin(x) f...

約11年前 | 0

質問

relative peak height - background
I have a spectrum and I am trying to find the relative height of the biggest peak. I was wondering if Matlab had an inbuilt func...

約11年前 | 1 件の回答 | 0

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