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Radar sector scanning!
The example uses the electronic scanning, i.e., scanning the beam via changing the phase at each element. Also for simple rotati...

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In order to generate vertical coverage plots or blake charts using radarvcp the frequency limit is 10 Ghz . I need to make plots at 16 Ghz. I can't determine what function is generating the error message about exceeding the 10 Ghz limit. Help?
I think the limit is set by the original model developed by Blake. I believe beyond 10 GHz the model is not validated. The error...

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Specifying SNR level of signal returned from Phased Array System Toolbox's function sensorsig
You can specify the signal power if you specify the SCOV input as a scalar. See the reference page at <http://www.mathworks.c...

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FMCW sweeptime Query!
I don't have your data to test it, but if you are using a 1ms sweeping time, then you need to update your sweep slope too. Inste...

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How to use spectrum analyzer object to show a signal waveform ?
You can set FrequencyResolutionMethod to 'Window length' to manually adjust the length of signal used to compute the spectrum, e...

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FMCW Radar Query!
Looks like you are using Phased Array System Toolbox, in that case, have you checked out its library in Simulink? There is a FMC...

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Question about sensorsig function of phased array system toolbox
If I understand it correctly, the signal at antenna #2 is essentially the negative of the antenna #1. This is because the first ...

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Phased Array Simulink modeling, Barrage
If you always outputing multiple number of pulses, then you may want to consider setting OutputFormat to Pulses and simply speci...

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phased.FreeSpace Error invoking stepImpl
Looks like your signal changed the complexity during your simulation. An easy way to fix this is to always convert your input to...

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How can i find the path of a file?
Try fileparts(which('File.sldd')) But your File.sldd has to be on path.

más de 9 años hace | 5

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Frequency domain of wvtool - how to replicate?
You need more points in there. The default is probably 512 or 1024. Try plot(db(abs(fft(w,1024))));axis([0 50 -80 40]); ...

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I have communication systems toolbox. I am not able to find FM Modulator baseband module in Simulink. Help
What version do you have? According the documentation below, you should be able to find it under Modulation library, then Analog...

más de 9 años hace | 0

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Different plots using rocpfa
I think you probably refer to the case where you take the magnitude of the signal to do the detection and in that case I agree w...

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Direction of arrival estimation of multiple signals using Capon (MVDR) beamformer
I would replace your signal definition with the following x = x + amp(k)*aU(k,:).'*exp(1i*randn(size(t))); HTH

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area of power spectrum units
If your horizontal axes is in Hz, then the unit will be fT^2/Hz*Hz=fT^2.

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How to excite each antenna with a different level of power by using phased array toolbox or antenna toolbox?
You can do this by passing in a weight vector to array. For example, say you have an 8-element array and you want to excite it e...

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A few questions about the output value of dsp.SpectrumAnalyzer
Here is how I look at it: (1) For all those FFT based spectrum analysis tool, the theory behind it is that the base of FFT ma...

más de 9 años hace | 0

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mex file gives two different results. what is the cause?
maybe you have some random number in functions you use? Could you try to run rng(0) before each run of your script and s...

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What toolboxes, if any, come with MatLab prerelease?
You may find the following answer useful <https://www.mathworks.com/matlabcentral/answers/101155-how-do-i-obtain-a-prerelease...

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Notice of amplitude modulation in FMCW example
This is due to the distortion of the propagation. In your setup, the distance between the radar and the target is approximately ...

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How to use the fast fourier transform to calculate the output of a transfer function?
I assume your X, H, and Y are all in frequency domain? In that case, your H has to match the size of X and it should be a elemen...

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Is it possible to create an L-shaped phased array using the Phased Array Toolbox?
Yes you can use Phased Array System Toolbox to do this, here is a small example to show that d = 0.5; N = 4; pos_alon...

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Toolbox Phased - GCC Estimate of Direction of Arrival at Microphone Array - MATLAB Example
You may want to check the spacing of the array and the sampling rate. The GCC algorithm essentially does a correlation between c...

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How can I use "beamscan" for a wideband signal (Phased Array System Toolbox)
The main idea behind beamscan is to form a beam toward all directions and then select the strongest return. For wideband signals...

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How do I generate a pulse train of sine waveforms?
You can take a look at the pulstran function in Signal Processing Toolbox. Here is an example prf = 1; pw = 0.1; fs ...

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How frequency response can be calculated from set of filter coefficients ????
Say if you have coefficients in a vector |a|, e.g., c = [1 1 1] Just do freqz(c) HTH

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How do I pass variables between functions
It seems you didn't explicitly return and pass in the properties you computed? Could you try properties = readProperties(...

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calculating auto-correlation function of a matrix
Do you mean you want to compute autocorrelation for each column? If so, you can always use a |for| loop to do that, e.g., ...

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How to use set() to put multiple y-data points on plot
Do you know the size of data? If so, you can do something like x = [rand(100,6) (1:100)']; % 100x7 matrix plotdata = pl...

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Phased.LinearFMWaveform Function + For Loop
Your code runs just fine, could you elaborate what your question is? My guess is you want to see the signal itself? If so, you c...

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