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vidyesh


Last seen: 4 días hace |  Con actividad desde 2023

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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); ...

5 días hace | 0

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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...

5 días hace | 0

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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 ...

28 días hace | 0

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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...

28 días hace | 0

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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 meses hace | 0

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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 meses hace | 0

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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 meses hace | 0

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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 meses hace | 0

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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 meses hace | 0

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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 meses hace | 0

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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 meses hace | 0

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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 meses hace | 0

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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 meses hace | 0

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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 meses hace | 0

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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 meses hace | 0

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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 meses hace | 0

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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 meses hace | 0

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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 meses hace | 0

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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 meses hace | 0

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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 meses hace | 0

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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 meses hace | 0

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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 meses hace | 0

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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 meses hace | 0

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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 meses hace | 0

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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 meses hace | 0

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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 meses hace | 0

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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 meses hace | 0

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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 meses hace | 0

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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 meses hace | 0

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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 meses hace | 0

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