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Delay-Sum Beam-forming
The following page contains some relevant information and can be a good starting point. https://www.mathworks.com/help/phased/b...

presque 7 ans il y a | 0

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How to model a rotating target ?
The following example may give you some ideas. https://www.mathworks.com/help/phased/examples/introduction-to-micro-doppler-ef...

presque 7 ans il y a | 0

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Antenna Toolbox Directivity Appears To Saturate
Your array has more than 100 thousand elements so it's very large. Therefore, the calculation probably missed the narrow beam. A...

presque 7 ans il y a | 0

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How can I find the incident angle of a 4x4 array that is divided from 1 Tx and 1 Rx channel using Phased Array Toolbox?
If all you care is just this 4x4 array, then you may just want to use a regular URA. It's not clear why you opt in a Partitioned...

presque 7 ans il y a | 0

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phased array toolbox.
Yes this can be done. You can look at some examples in following pages to see how to transmit and receive with steering https:/...

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How to add regular sine wave in phased array toolbox?
Could you clarify your use case? Although there is no regular sine in Phased Array System Toolbox, but you can use sin() functio...

presque 7 ans il y a | 0

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How can I use replicated subarrays and still set individual taper and phases?
If you set SubarraySteering to Custom, it means you want to control each element individually, thus you need to provide a weight...

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How to introduce phase error into phased array
You can do somethign like this to simulate a phase error uniformly distributed within +/- 2.5 degrees in each element. pherr_de...

presque 7 ans il y a | 0

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phased array mag2db
Thanks for the suggestion, we will look into this.

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How can i fix this problem "Undefined function 'Taylor' for input arguments of type 'double'."
Looks like you are using a function from the book so you may want to find the function from the disc or download. You should als...

presque 7 ans il y a | 0

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Can I design speaker array and measure the distribution of sound field in the Phased Array System Toolbox?
You can build a round array in Phased Array System Toolbox, but I'm not familiar with acoustic vortices. Do you have a reference...

presque 7 ans il y a | 0

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Get Directivity Values From phased.URA
If you want directivity values for all angles, you can just simply do D = pattern(sar_array, F(1), 'PropagationSpeed', PS, 'Typ...

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Spectrum cannot be calculated
From the figure, it seems to suggest that your data is complex but your block is set to compute one sided spectrum. I think you ...

environ 7 ans il y a | 0

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Trouble understanding "Lags" for Cross Correlation
1 lag is essentially 1 sample, so how much time it represents depends on your sample rate. In your case, since for 10 sec data y...

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Multistatic radar simulation in Phased Array Toolbox
Yes Phased Array System Toolbox can model such scene. You can see a bistatic polarimetric radar example at https://www.mathwork...

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Simulation of Clutter Affected by Transmitting Weight
Thanks for the post, this is indeed a gap in the toolbox. We'll try to provide this capability in the future. What release are y...

environ 7 ans il y a | 0

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Inverse Direction of Arrival Estimation
If you are sure that Range-Azimuth is obtained via a 1-D FFT, then you can just do an inverse FFT, as long as you have the origi...

environ 7 ans il y a | 1

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Phased Array Systems Toolbox
X is probably not a matrix. If you can provide more info regarding the data matrix, that will help us understand the problem bet...

environ 7 ans il y a | 0

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Max value of each vector in a 3D hyperspectral data matrix
Let's say xc is your datacube, does [z_max,z_ind] = max(xc,[],3) satisfy your needs? HTH

environ 7 ans il y a | 0

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Using System Objects in complex programs (DSP)
Yes you can do it, there are many shipping System objects that do this. This is essentially done the same as a regular class. H...

environ 7 ans il y a | 0

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Difference between no steering and steervec in 0, 0 ?
Could you share how you invoke the two interfaces? From what you described? The two interfaces is a bit different in array defin...

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Hi. I have to create an FMCW signal, transmit, receive and mix them to get the IF signal, and inturn get the radar 2D matrix for post processing. But I my 2nd FFT doesnt give the correct value of velocity.
The following example might be helpful to you https://www.mathworks.com/help/phased/examples/automotive-adaptive-cruise-contro...

environ 7 ans il y a | 0

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Is there any code for spatial spectrum in ESPRIT algorithm?
ESPRIT does not estimate the direction of arrival from spatial spectrum, thus the function currently does not generate the spati...

environ 7 ans il y a | 1

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Is there an alternative for kalman filter
For a linear system, a linear Kalman filter is probably enough. There is also a simpler form of Kalman filter called alpha-beta ...

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Are there any matlab functions to calculate E,H-plane beamwidths for a rectangular phased array?
You can use polarpattern to plot the pattern in the two planes and measure the beamwidth. HTH

environ 7 ans il y a | 0

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Beamsteering With Custom Elements Without Phased Array Toolbox
What you described to me looks like what you will be able to achieve with SteeringVector, or more precisely ArrayResponse. You m...

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Getting the complex antenna response in the antenna library?
Is this what you mean? https://www.mathworks.com/help/antenna/ref/ehfields.html Or alternatively, if you want it to be in far ...

environ 7 ans il y a | 0

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How to update patternCustom plots
Since magE is CData, you can just do h = patternCustom(magE,theta,phi); h.CData = newMagE; HTH

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Periodogram of sinusoid: why power is -6 dB instead of -3 dB?
The periodogram shows the power density. The magnitude at those frequency for a sinusoid is 1/2, so the power is 1/4, which corr...

environ 7 ans il y a | 0

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How can I know the period of a FMCW?
You may be able to use phased.LinearFMWaveform to achieve this. FMCW waveform is set to be without the idle time. HTH

environ 7 ans il y a | 0