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Swetha Polemoni


Last seen: 2 days ago

MathWorks

43 total contributions since 2020

I am Application Support Engineer at Mathworks.
Disclaimer: Any articles /ideas/opinions here are my own and no way reflect that of Mathworks

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  • Knowledgeable Level 2
  • 3 Month Streak
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Answered
Calculate frequency and rate of change of frequency
Hi To find the frequency components present in a signal, the signal can be transformed into frequency domain and frequencies ca...

1 month ago | 0

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Convolve vector with audio file
Hi Matthew Strunks It is my understanding that you want to convolve your audio signal and FIR filter. Since convolution in tim...

1 month ago | 0

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How do i reduce running time in this code
Hi Tzach Berlinsky, In the code you have provided using nested loops is not necessary. Since the body of loops is executed only...

1 month ago | 0

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The Value of ValidaitonData is invalid
Hi, You may find this answer helpful.

1 month ago | 0

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Spliting ground truth data into 70% for training, 30% for Validation
Hi Abdussalam Elhanashi It is my understand that you want to create a dataset from existing data for validation purpose. You m...

1 month ago | 0

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Creating Fourier Analysis Code
Hi George Rodriguez, It is my understanding that you want to analyze a composite signal i.e., sum of different frequency signal...

1 month ago | 0

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Probability of error for non-coherent FSK
Hi Zaki Ahmad, You may find the following link helpful. Performance of noncoherent FSK in AWGN channel.

1 month ago | 0

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Differential Phase Shift Keying (DPSK)
Hi AHMAD SAUFUDIN, It is my understanding that you want to modulate your data using DPSK. If you have your message data, fee...

1 month ago | 0

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Data input for CNN training
Hi Junjie Huang You may find this answer helpful.

1 month ago | 0

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Fuzzy text in MATLAB Live Editor
Hi Charles Refvem, This issue has been brought to the notice of developers. They may investigate further.

1 month ago | 0

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How to find Hue and chroma values of images
Hi SNEHAMOL K You can try first converting the image color from L*a*b* color space to RGB color space using "lab2rgb" and the...

2 months ago | 0

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Answered
Transsmiter image through QPSK modulate
Hi shmuel manashirov, To do QPSK modulation on any data, first you need to create an object to QPSK modulator. You can create ...

2 months ago | 0

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Feedforward Nueral Networks Training
Hi Felicia Ojinji, It is my understanding that you want to calculate how much time has been taken by your network to train. Yo...

2 months ago | 0

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rows and columns in array
Hi Rachel Ramirez, It is my understanding that you want To check how many times a number repeats in a particular row or colum...

2 months ago | 0

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Concatenating multiple NetCDF files
Hi Tim Holgate, You may find this answer helpful.

2 months ago | 0

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Answered
How to use Deep Learning Toolbox - FOR DATASET NOT IMAGES
Hi Matt Egan, It is my understanding that you want to know how to train a network with dataset which is not an image dataset. H...

2 months ago | 0

Answered
How to read out the strings from this Excel file?
Hi Leon, You can try using the following line of code. [~,~,T] = xlsread ('test.xlsx');

2 months ago | 0

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How to understand the symbolic inverse fourier transform result?
Hi Fast Car, This issue of working with ifourier has been brought to the notice of developers. They may investigate the matter...

2 months ago | 0

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How do I set my script for FFT of a physiological signal?
Hi It is my understanding that you want to plot single sided amplitude spectrum of a signal. As per my understanding, the i...

2 months ago | 0

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How to upload multi files of .mat, then convert to image and crop the center region of the outcome image ? Automatically
Hi Mohamed Elbeialy, It is my understanding that you want to load a mat file , covert it into image and work on it. To unders...

2 months ago | 0

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Finding first 5 maxima and its consecutive minima.
Hi Jai Vaidya, You can use "islocalmin" to find minima. Here is an example that uses "findpeaks" to find minima. Hope this h...

2 months ago | 0

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How to write code for a composite signal with instantaneous frequency
Hi Jan Ali, It is my understanding that you want to add three signals that are defined only in particular intervels of time. F...

2 months ago | 0

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Answered
Is it possible to share content directly via Matlab online with a Campus license?
Hi Axel Wings In Matlab it is possible to share folders. Following documentation links may help you with the process. Share...

2 months ago | 1

Answered
How can I visualise the side view of 3D matrix ?
Hi. It is my understanding that you want visualize side view of your 3d matrix after plotting. "View" command in matlab can b...

3 months ago | 0

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How to plot a dispersion diagram like this?
Hi It is my undersatanding that you want to draw ellipse, hyperbola and straight line in first quadrant. Try the following cod...

3 months ago | 1

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Answered
how can i combine 2 or more programm ?
Hi, It is my understanding that you want to use data in one program which is generated in another progarm . You could use "fun...

3 months ago | 0

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Answered
How To Curve Fitting In Respect To Other Curves & Calculate Shift And Compression Of Curve
Hi, It is my understanding that you want to find relationship between your data sets. You may find 'lsqcurvefit" useful. You m...

3 months ago | 0

Answered
Time axis of inverse Fourier transform with truncated frequencies
Hi Daniel Lalich, Answer to your question "how to label time axis?" t=0:1/fs:n/fs; % n is FFT length and fs is sampling freq...

3 months ago | 0

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Plotting Rician Fading Channel
Hi Saad Khan, You might want to smoothen the histogram. Here is the example for understanding smoothening of histogram using...

3 months ago | 0

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Answered
How I get all frequency in FFT result?
Hi, As per my understanding , you want to all the frequcies available in the signal after it is being filtered out. In the las...

3 months ago | 0

| accepted

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