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Devineni Aslesha


Last seen: 4 days ago

MathWorks

90 total contributions since 2019

I am an Application Support Engineer at MathWorks. My job position allows me to explore different domains in MathWorks and find my target domain by doing projects in different domains.

My areas of interest are Signal processing and communications.

DISCLAIMER:Any advice or opinions here are my own and in no way reflect that of MathWorks.

Devineni Aslesha's Badges

  • 3 Month Streak
  • Knowledgeable Level 2
  • First Answer
  • Solver

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Contributions in
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Answered
Error in port widths or dimensions. Output port 1 of 'untitled/Add' is a one dimensional vector with 64 elements
Hi Awais Ahmad, After creating the Simulink model, run the pulse_detector_v1_tb.mlx testbench file available from the link: htt...

8 days ago | 0

Answered
How do I edit Default Exciter = dipole in the Antenna Toolbox
Use the following code to design the reflectorCorner antenna with operating frequency 434 MHz. antenna = reflectorCorner; des...

12 days ago | 0

Answered
How to create a 3 variable Karnaugh Map
The following link might help in creating a 3 variable Karnaugh map in MATLAB. https://www.mathworks.com/matlabcentral/fileexch...

14 days ago | 0

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Using the findpeaks function with threshold
The threshold value can be inputted by the user as shown below. prompt = 'What is the threshold value? '; threshold = input(pr...

14 days ago | 0

Answered
How to close the signalAnalyzer app from the command line?
As of now, closing the signal analyzer app from the command window is not supported for the available MATLAB releases. However,...

14 days ago | 1

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Answered
how do we plot enumerated data and real floating point data in the same plot/figure?
The y-axis values in the plot function do not support enumerated data types. Refer https://www.mathworks.com/help/matlab/ref/plo...

15 days ago | 0

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Did I implement the backwards-euler Methode correctly?
Hi Marchus, The backward euler method is implemented correctly, however as f is not a function of t, the plot is constant for i...

2 months ago | 0

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Answered
Hank and Tank code model
Hi MATLAB has few examples that are related to keynesian models. https://www.mathworks.com/help/econ/examples/modeling-the-un...

2 months ago | 0

Answered
how to generate an image given 2D points coordinates and the gray intensity value
Hi Luca To generate an image with the given 2D point coordinates and the gray intensity value, use the imshow function in MATLA...

2 months ago | 0

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Answered
Best way to plot spectogram of multiple single frequency inputs (0.05hz, 0.1hz, 0.15hz etc) and corresponding output data
Use the spectrogram function to plot the spectrogram of multiple single frequency inputs. Define the input signal with different...

2 months ago | 0

Answered
Save output variables from uitable in the workspace
Hi Joseba, To save the updated values of the editable table into the workspace in the newData variable, use the below command. ...

2 months ago | 0

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Answered
Numden on complex equation returns unexpected result
The given input to numden function is a symbolic expression. However, as it involves a complex number, the numden function handl...

3 months ago | 0

Answered
Is it possible to change stackedplots background color?
As of now, changing the background color in stackedplot is not supported in AppDesigner -> uifigure for the available MATLAB rel...

3 months ago | 1

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Answered
Problem combining Count and switch block in simulink
The issue occurred primarily because the Switch block is being used before the Counter block in your Simulink model. In order to...

3 months ago | 0

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Answered
Using nested loop to check for whole numbers inside a matrix
To check for whole numbers inside a matrix using nested loop, use the code as shown below. x = [1 2.5 4;3.2 6 9;5.2 6 7]; [rx,...

3 months ago | 0

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How to calculate the spectrum of the message w(t), the spectrum of the carrier c(t), and the spectrum of the received signal v(t), and the spectrum of the envelope?
To calculate the spectrum of the carrier signal, use the ‘fft’ function as shown below. The same approach can be followed to cal...

3 months ago | 0

Answered
Phase and amplitude shift
Use two 1D lookup tables where the inputs of 1st and 2nd lookup tables is average power and the output of one lookup table is am...

5 months ago | 0

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Are there any examples using ecmmvnrfish?
ecmmvnrfish is used to find the fisher information matrix. The inputs to the function are Data, Design and Covariance. The examp...

5 months ago | 0

Answered
fix the soulation pleaase
In the provided code, the size of p is 1x2. However, the size of p(:,size(p,2))+0.2*[fx;fy] is 2x1. While concatenating horizont...

5 months ago | 0

Answered
Setting symbol rate and sampling frequency for a carrier in Simulink
The symbol rate of each of the given signals depends on the Sample time parameter in Random Integer Generator block. However, to...

5 months ago | 0

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Answered
Can someone confirm my differentiation code is correct?
The code written to differentiate P (a, u, EA1, EA2) with respect to u is correct. It will give correct result. The reason for t...

5 months ago | 1

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Answered
OCR function does not recognize number 8
While passing the image data to ocr function, no need to convert the image from RGB to gray as ocr function converts truecolor o...

5 months ago | 0

Answered
How can I resize a plot image and save it?
Assuming the resolution of image to be 32*32 pixels, the image is saved in the specified resolution and format using print funct...

5 months ago | 0

Answered
Write a function called mysum that sums the first n positive numbers. Give the result x1 for n=20,and the result x2 for n=100. For example, if n = 2, mysum computes the sum of 1 and 2. The result is 3.
Create a function using the keyword ‘function’ and save the file with name mysum.m. function output = mysum(n) output = 0; fo...

5 months ago | 0

Answered
Convert an image with 16 bit depth to 32 or 62 bit in MATLAB?
To convert a 16-bit monocromatic image (no colors, black and white) to 32-bit, the below procedure can be followed with gray sca...

5 months ago | 1

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Answered
Using ppval for a polynomial of two variables
A piecewise polynomial that is a function of two variables cannot be evaluated using ppval. Use the given link for reference htt...

5 months ago | 0

Answered
How to hide the mouse pointer in app designer
As of now, using a custom pointer is not supported in AppDesigner -> uifigure for the available MATLAB releases. However, the c...

5 months ago | 0

Answered
what is the noise bandwidth considered while calcuating SNR ; for func of the form .. r = snr(x,fs,n)
The noise bandwidth is equal to the sampling frequency. This can be obtained by plotting the power spectral density of noise. ...

5 months ago | 0

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Answered
FIR Filter function sample rate
To design an FIR bandpass filter with a passband of 1000Hz to 2000Hz and fs=50000Hz, the passband frequency is given as normaliz...

5 months ago | 0

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Answered
Circular vs. linear convolution of 2D data
Hi William, In order to zero-pad a 2D data i.e. matrix, padding should be in such a way that the row length is equal to r1+r2-1...

5 months ago | 0

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