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Finding Local Maximums in a Signal?
If you think the first plot has only two peaks, |findpeaks| may still be your best bet, you may want to pass the signal through ...

6 years 前 | 0

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What's the formula behind the coefficients calculation of the Filter Designer?
If you go to File -> Generate MATLAB Code, you will be able to get a script containing functions that used by the app to design ...

6 years 前 | 0

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Hi everyone, Can anyone help me to plot range doppler response with all the essential parameters??
As you mentioned in the end, you can use phased.RagneDopplerResponse to do that. Have you tried it out? Did you encounter any is...

6 years 前 | 0

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Is there any other APPS in Matlab apart from Filter Designer. Just for filtering the signal
Not sure if this is what you want, but if you go to File -> Generate MATLAB Code, there is an option to generate a data filterin...

6 years 前 | 0

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Is it possible to change elevation angles in the Vertical Coverage Diagram?
The reason for nan is that when the function computes the vertical response, it needs to access the pattern value out of the spe...

6 years 前 | 0

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How to perform 2D CFAR detection on a 256x128 matrix using phased array tool box?
You should be able to map everything to |phased.CFARDetection2D|, have you tried it. Did you encounter an issue? The reference p...

6 years 前 | 0

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How can I extract the first element of a vector in simulink?
You should be able to use a Selector block. You can find the reference page at <https://www.mathworks.com/help/simulink/slref...

6 years 前 | 0

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Using GCCPhat with Matlab Coder Issues - 'xref' not fully defined
Sorry for the late reply. This is a bug. I think the easiest way to fix this is to supply the sampling frequency as the third in...

6 years 前 | 0

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Hello everyone, How to check range and doppler is correct through the graph response?
If you have a range-Doppler response map, you will see a blob at the corresponding range and Doppler coordinates. This map typic...

6 years 前 | 0

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When doing target parameter estimation with a ULA, is it necessary to use beamforming?
That depends on what you want to estimate. For example, if you want to estimate the direction, then you need to have signals fro...

6 years 前 | 0

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In phased array toolbox, what is the difference between rootmusicdoa and phased.RootMUSICEstimator functions?
They do the same thing, the difference is on interfaces. |rootmusicdoa| takes the covariance matrix as input while |phased.RootM...

6 years 前 | 0

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Using GCCPhat with Matlab Coder Issues - 'xref' not fully defined
Could you share your script? In terms of limitation, neither number of inputs nor sizes of inputs can change but your issue does...

6 years 前 | 0

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Transfer RADAR data e.g. Spectrum to Matlab Environment ?
I think your best bet is to contact the evaluation kit manufacturer. Given they are displaying the spectrum on their software, t...

6 years 前 | 0

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Please help implement this equation(2.51).
You may find the following example helpful, especially the multiscatter target part <https://www.mathworks.com/help/phased/ex...

6 years 前 | 0

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Please How can I get the remaining blocks in signal processing subsystem
Signal Processing block is a subsystem containing several blocks from Phased Array System Toolbox and DSP System Toolbox. If you...

6 years 前 | 0

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Matlab FFT - sampling frequency
It should match the sampling frequency used to obtain your digital signal, otherwise your interpretation of the signal is wrong....

6 years 前 | 0

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Please Im stuck on how to create a system object
The code snippet you show is how to create a wideband backscatter target. It is how you use the object, not how you write such a...

6 years 前 | 0

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How do I create a vector of n consecutive numbers spaced at with an interval of m between each group, without using a for loop?
Here is one possible solution N = 9; n = 3; m = 2; x = buffer(1:N,n); x = x+(0:size(x,2)-1)*m; x(1:N).' H...

6 years 前 | 0

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Please Im stuck on how to create a system object
It's already in the Phased Array System Toolbox, it was introduced in R2016b. <https://www.mathworks.com/help/phased/ref/phas...

6 years 前 | 0

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Input signal to phased.BackscatterRadarTarget is wrong
You have a Swerling 1 target, so the last input to your target call is an update flag (scalar) telling it whether to update the ...

6 years 前 | 0

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how to get expectations for various equations?
When you do |A'| in MATLAB, you are taking Hermitian transpose of matrix A. For example A = [1+1i 1-1i]; A' HTH

6 years 前 | 0

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How to use beamformer in matlab 2016a using step()
You need to pass in an extra input representing the desired beamforming direction because you set the DirectionSource to 'Input ...

6 years 前 | 0

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How can I use Phased Array System Toolbox to implement delay and sum beamforming for wavefile?
The following demo covers some basics and can serve as a good starting point <https://www.mathworks.com/help/phased/examples/...

6 years 前 | 0

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Why do I receive an error message about output arguments for my Embedded MATLAB Function in Simulink?
Your |D| is undefined for the cases where |T<=n*0.005| You can consider add that by adding the |else| branch to the code, for...

6 years 前 | 0

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Multiple target detection using FMCW Radar
There are several FMCW radar related examples in Phased Array System Toolbox. You can find them at <https://www.mathworks.com...

6 years 前 | 0

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Creating a scatter plot with three variables.
I would use |scatterm|, something like scatterm(X,Y,5,Z) The reference page can be found at <https://www.mathworks.co...

6 years 前 | 0

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How can I plot the first 1000 numbers in my matrix?
You can do y = x(1:167,:) where x is the original data matrix. HTH

6 years 前 | 0

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Why is fft2 not giving me the correct results?
First of all, it seems like your data is just a vector? In that case you can just do 1D fft, like fft(x) As to your resu...

6 years 前 | 1

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How do i retrieve a specific value from a 2D matrix?
You can use B(A==earliercalculatedvalue) HTH

6 years 前 | 1

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Why are the results of two spectral density estimation methods（periodogram and pwelch） inconsistent? If the amplitude of the power spectrum density of random signals is concerned, which spectral estimation is accurate?
Your bin widths are different. In Welch's method, you are doing in only 500 points FFT. However, the power is given by multiplyi...

6 years 前 | 1

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