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Devineni Aslesha


MathWorks

79 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
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...

22 days 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...

24 days ago | 1

| accepted

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...

29 days ago | 0

| accepted

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,...

30 days ago | 0

Answered
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...

1 month 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...

2 months ago | 0

Answered
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...

2 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...

2 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...

2 months ago | 0

| accepted

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...

2 months ago | 1

| accepted

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...

2 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...

2 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...

2 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...

3 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...

3 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...

3 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. ...

3 months ago | 0

| accepted

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...

3 months ago | 0

| accepted

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...

3 months ago | 0

| accepted

Answered
Stop playing audio using audioDeviceWriter.
Play and stop functions are applicable for audioplayer and audiorecorder objects. An audio played by audioDeviceWriter can be st...

3 months ago | 2

Answered
Quantizer modelling in Simulink
I am assuming that you are modeling 3rd order delta sigma ADC using uniform quantization. You can use the ‘Idealized ADC Quantiz...

4 months ago | 0

| accepted

Answered
How do I display my waterfall plot with only curves?
I assumed some random data to generate waterfall plot. Please refer to the below code for generating waterfall plot in curves. ...

4 months ago | 0

Answered
How to convert/run Mathematica scripts in MATLAB
I found a similar case in which Mathematica needs to be linked with MATLAB. I would suggest you follow the link provided below. ...

4 months ago | 0

Answered
convert idtf data format to tf data format
I am assuming that you generated a transfer function using idtf command as shown below. num = [1 4]; den = [1 20 5]; sys =...

4 months ago | 0

Solved


Find state names that end with the letter A
Given a list of US states, remove all the states that end with the letter A. Example: Input s1 = 'Alabama Montana Nebras...

7 months ago

Solved


The Goldbach Conjecture, Part 2
The <http://en.wikipedia.org/wiki/Goldbach's_conjecture Goldbach conjecture> asserts that every even integer greater than 2 can ...

7 months ago

Solved


Kaprekar Steps
6174 is the <http://en.wikipedia.org/wiki/6174_%28number%29 Kaprekar constant>. All natural numbers less than 10,000 (except som...

7 months ago

Solved


Read a column of numbers and interpolate missing data
Given an input cell array of strings s, pick out the second column and turn it into a row vector of data. Missing data will be i...

7 months ago

Solved


Interpolator
You have a two vectors, a and b. They are monotonic and the same length. Given a value, va, where va is between a(1) and a(end...

7 months ago

Solved


Remove all the words that end with "ain"
Given the string s1, return the string s2 with the target characters removed. For example, given s1 = 'the main event' your ...

7 months ago

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