vidyesh
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Contribute at least one answer each month for 6 consecutive months
Awarded to vidyesh on 02 Mar 2024
3 of your answers have been accepted
Awarded to vidyesh on 17 Oct 2023
Provide your first answer ever to someone else's question
Awarded to vidyesh on 22 Sep 2023
Feeds
How to divide spectrogram in bands according to y-axis?
Hi Jaya, The 'histogram' function should allow you to divide the spectrogram as desired. h = histogram(y); disp(h.Values); ...
6 dagar ago | 0
Storing a variable and calling it out again to use and plot
Hi Ellie, The reason for the error is that number of elements/values in vector 'x' and and vector 'T' are different. Consider...
6 dagar ago | 0
How to generalise my code?
Hello Hozifa, You can use an array of cells for this purpose. array2D = [ 4.23E-08 -132.208 % Group 1 4.60E-08 -149.346 ...
29 dagar ago | 0
Delay issue from Buffer/Unbuffer block
Hello Fumihiko Sato, Please refer to the following documentation pages on how "receive delay" can be calculated and how to addr...
29 dagar ago | 0
export data from workspace to simulink
Hi Ahmed There are several ways to load this data for your simulation, and they are all documented here: Provide Signal Data f...
2 månader ago | 0
rng and randn on matlab
Hi mingcheng, Since channel coeffecients are random in nature, their values can be extremely small at time. Also please note t...
2 månader ago | 0
Pulse shaping on BER
Hi Rory, The issue lies in the below line of code: txSig = conv(over_data,half_Sine, 'same'); Are you trying to simulate th...
2 månader ago | 0
Add x1[n] = exp(−n/4), −4 ≤ n ≤ 8 with x2[n] = cos(πn/4), 0 ≤ n ≤ 12. Plot x1[n], x2[n], and y[n].
Hi Albert, The starting point would be to decide the period of signals/sample spacings. I am assuming 0.01. 1) define 'n' bet...
2 månader ago | 0
How to add awgn to gfsk?
Hi Firas, To add awgn to the signal, you can use the 'AWGN' block: https://www.mathworks.com/help/comm/ref/awgnchannel.html ...
2 månader ago | 0
SNR comparison real/complex signal
Hi Florian, Here is my understanding of the issue: The SNR is the ratio of signal power to noise power. When converting from ...
2 månader ago | 0
how to plot the auto and cross correlation of walsh hadamard codes
Hello Yas Mine, To perform correlation between two signals, you can use ‘xcorr’ function. In ‘xcorr’, if you provide only one ...
3 månader ago | 0
How do I assign frequency values to the obtained fft values without plotting . I need to know the value of the peak at 16Hz for further calculations.
Hi Yogesh, You can use the max function to find the value of the peak and its index in the array. Then use the index to get th...
7 månader ago | 0
| accepted
Can I change the Simulink default settings in bode plots like frequency unit in Hz instead rad/s and define a fix frequency range in "Model Linearizer"?
Hi Rai, You can change the unit of frequency in the plots using the 'Toolbox Preferences Editor'. https://www.mathworks.com/he...
7 månader ago | 0
Can I change a resistors resistance during simulation in simulink?
Hi Vágó, You can accomplish this by using a Variable Resistor block: https://www.mathworks.com/help/simscape/ref/variableresi...
7 månader ago | 0
| accepted
Why is SNR independent of the received signal power?
Hi, The nosie parameter n is inversely dependent on SNR value in the given example. Therefore for higer SNR, the noise values a...
7 månader ago | 0
How do I add AWGN noise to a RF Signal at the receiver ?
Hi Narayan, 1.So, How can we relate those two things ? In the matlab example code, N0 is calculated based on the SNR, NFFT and ...
8 månader ago | 0
| accepted
how can I know which data types I need precisely?
Hi SimTec, Your question touches on the trade off between accuracy and computational cost of a system. Single precision, with i...
8 månader ago | 0
Digital Butterworth Bandpass Filter
Hi Hassan, The error you're encountering is due to the cutoff frequencies being outside the expected range for the buttord func...
8 månader ago | 0
Inverse of xcorr?
Hi Mariano, Inverse of the cross-correlation can be calculated using the deconv function (as suggested by Jonas). Note that f...
8 månader ago | 0
LTE Toolbox Index Returning Functions
Hi Hakan, The indices returned by the ltePUCCH1DRSIndices function are organized according to the PUCCH format 1 DRS modulation...
8 månader ago | 0
Obtaining the Percentage Error from a set of data
Hello Hasan, Based on the requirements for combining seven matrices, there are two scenarios to consider depending on the unifo...
8 månader ago | 0
MLSE Equalizer Traceback depth and BER
Hello Nicola, The effectiveness of Traceback depth 20 in your MLSE Equalizer setup for a Rayleigh fading channel wit...
8 månader ago | 0
Comparing Numerical and Monte carlo simulation for Erlang B loss formular
Hello Daniel, The discrepancy in your results likely stems from generating random values for the Poisson arrival rate (λ) i...
8 månader ago | 0
discrete wavelet transform data format
Hello, Many wavelet functions are designed to analyze patterns or frequencies in your data, often without the need for direc...
8 månader ago | 0
| accepted
Data length error in OFDM Simulink
Hello Rajmouli, I understand you're encountering an error when calculating the error rate, stemming from a mismatch in the l...
9 månader ago | 0
How do I further compute hermitian symmetry IFFT
Hi Marcin, I understand you're interested in the differences between manually constructing a Hermitian-symmetrical matrix f...
9 månader ago | 0
How to filter by row and print out different row if within boundary.
Hi Santiago, I understand the problem as follows: we have a set of trials, each consisting of 5 columns. The goal is to che...
9 månader ago | 0
how to use the 'histfit' function for cell arrays?
Hello, I understand that you're looking to create a histogram for all the values within your cell array ‘S7’ combined, and ...
9 månader ago | 0
recursive fft function- return if function
Hi Liron, It looks like your recursive FFT function is almost correct, but it's currently appending extra values at the end ...
9 månader ago | 0
Performance Measures - Comparing measurement data with simulation data
Hi Ali, I am assuming you want to perform mathematical operations on data that share the same timestamps. To accomplish this...
9 månader ago | 0
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