Answered
LinearFM Target Range Detection with Matched Filter Error
You forgot to set the sample rate in channel accordingly. Replace your channel definition as channel = phased.FreeSpace('Propag...

10 månader ago | 1

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Answered
Beamforming using custom phases for each array element.
Like you said, you can use custom tapering on elements. Just convert the phase to the corresponding complex number and specify i...

10 månader ago | 0

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phased.freespace channel multiple targets
What are dimensions of your inputs to the object? You may need to match the number of input signal to number or targets. HTH

10 månader ago | 0

Answered
how to simulate radar echo signal with time delay and doppler shift?
These examples in Phased Array System Toolbox mahy be a good start. https://www.mathworks.com/help/phased/examples/designing-a-...

10 månader ago | 0

Answered
generating matched filter for a rectangular pulse waveform
In general matched filter is the conjugated time reversal of the waveform, like y = conv(x,conj(flip(x))) HTH

10 månader ago | 0

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Answered
How to save the previous figure generated by function'step(H,x)'
The constellation diagram is workig as expected. The object enables you to overwrite the plot over time so you can see how the c...

ungefär ett år ago | 0

Answered
How can I get the phase of a ConformalArray
Could you elaborate what you mean by having steering vector as an input? In your pattern() call, the steering vector (I assume t...

ungefär ett år ago | 0

Answered
Shnidman’s equations
In this case you can use shnidman to compute the SNR as a functionof N and then plot it manually, e.g. N = 1:50; Pd = 0.98; P...

ungefär ett år ago | 0

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Answered
Can I use my own model in "trackingimm"
Yes you can. You need to provide your own motion model update/measurement functions as well as a function switching the state be...

ungefär ett år ago | 1

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Answered
2D beamforming simulation
First of all, I don't think elevation is changing. This plot is in spherical coordinates, so the surface is curved, but the colo...

ungefär ett år ago | 0

Answered
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...

ungefär ett år ago | 0

Answered
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...

ungefär ett år ago | 0

Answered
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...

ungefär ett år ago | 0

Answered
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...

ungefär ett år ago | 0

Answered
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:/...

ungefär ett år ago | 0

Answered
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...

ungefär ett år ago | 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...

ungefär ett år ago | 0

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Answered
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...

ungefär ett år ago | 0

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

ungefär ett år ago | 0

Answered
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...

ungefär ett år ago | 0

Answered
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...

mer än ett år ago | 0

Answered
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...

mer än ett år ago | 1

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Answered
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 ...

mer än ett år ago | 0

Answered
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...

mer än ett år ago | 0

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Answered
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...

mer än ett år ago | 0

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Answered
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...

mer än ett år ago | 0

Answered
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...

mer än ett år ago | 1

Answered
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...

mer än ett år ago | 0

Answered
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

mer än ett år ago | 0

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Answered
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...

mer än ett år ago | 0

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