Chinwe Orie

Last seen: 5 years ago | Active since 2018

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Filtering of 60 Hz signal - not working
Following the example "Remove the 60 Hz hum from a signal", I tried to run a butterworth filter in order to filter out multiples...

6 years ago | 1 answer | 0

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Question

Plotting a heat map with two variables with color dependent on third variable
I have a matrix of x and y values, and I would like to plot them using a heat map. However, there is also a third column in the ...

6 years ago | 1 answer | 0

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Question

Creating folders outside of the current folder
Hi! I would like to use MATLAB to create folders in a specified folder. However, I've only been able to get MATLAB to create fo...

6 years ago | 1 answer | 0

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Question

Curve Fitting for Forced Damping
Hello, I used the curve fitting app to fit this equation to some data: F./(m*sqrt((w0^2-w.^2).^2 + (g^2)*w.^2)) The constants...

6 years ago | 1 answer | 0

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Question

Fitting an Amplitude-Response Curve
Hi, I'm trying to fit an amplitude-frequency response curve to a particular equation (in picture below). I've tried using ...

6 years ago | 1 answer | 0

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Importing Numerically Named Excel Files into MATLAB
I have some excel files called 'd1-1.csv', 'd1-2.csv', and so on until 'd1-15.csv'. However, when these files are loaded into MA...

7 years ago | 1 answer | 0

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Finding Local Maximums in a Signal?
I have a set of signal data and I'd like to find the local maximums. For example, one of the graphs below has two peaks while th...

7 years ago | 1 answer | 0

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Answered
Finding Corresponding Frequencies to Amplitude Peaks
I found a better way to address the problem. In order to find the highest peak in another array of similar numbers (to find the ...

7 years ago | 0

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Question

Finding Corresponding Frequencies to Amplitude Peaks
I have an amplitude-frequency plot and I'd like to find the frequencies that correspond with the top three amplitudes. I am able...

7 years ago | 1 answer | 0

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Question

How to get a specified number of local maxima?
I have a signal and I only want the top two or three local maxima, I don't want the 5000 maxima that the findpeaks() function gi...

7 years ago | 1 answer | 0

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Question

Amplitude-Frequency response peaks at zero, how to fix?
I made an amplitude-frequency response curve but I have a peak at 0 Hz. I'm not sure why but I know for sure that this is defini...

7 years ago | 1 answer | 0

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Question

How to get amplitude-frequency response curve?
How should one go about plotting an amplitude-frequency curve? So far, what I've done is to take a signal, take the upper and...

7 years ago | 0 answers | 0

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Question

Calling Variables from the Workspace
Hello. I have some variables in the workspace and they are named Cap# (the # stands for a number, so it could be 1,2,3,etc.). I...

7 years ago | 1 answer | 0

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Question

Fitting Envelope Peak Curves?
Hello, I've been trying to take the peak envelope of a signal that I have, and I am able to get the upper and lower peak enve...

7 years ago | 0 answers | 0

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Question

How to straighten a sinusoidal signal?
I have a signal that bouncy (the waves are all over the place), and I've been trying to filter out the bouncy signals without ch...

7 years ago | 2 answers | 0

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Question

How would one filter out certain power spectrums in the signal analyzer app? (for example, if I wanted to filter out any signal that produced power between 80 and 90 dB?)
I'm using the signal analyzer app to try and fix certain signals that I have. I have noticed that signals producing a power spec...

7 years ago | 1 answer | 0

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Question

Troubling using Envelope Function - Envelope Curves Overlap!
Hello, I am trying to use the envelope function to connect peaks of my signal. In order for the waveform to be a smooth "hump...

7 years ago | 0 answers | 0

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Question

How to use datasets in Classification Learner App?
Hello, I want to use the classification learner app. But before I do, I want to create multiple data objects, label them and th...

7 years ago | 1 answer | 0

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