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can anybody tell me the code for time series of backscatterer radar wave?
Part of the following demo shows how to model the radar return with three targets. <https://www.mathworks.com/help/phased/exa...

quasi 10 anni fa | 1

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Matlab filter into simulink filter
You can consider using realizemdl(d_LPF) and then pass the signal through the generated filter. The doc can be found at ...

quasi 10 anni fa | 1

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I have found negative value of SNR(in dBc) of an ECG signal by using spectrum analyzer block in simulink.Is it correct?
That is normal. A negative dBc value simply means that the signal is weaker than the carrier. HTH

circa 10 anni fa | 1

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Can I get Antenna Toolbox on trial basis?
<https://www.mathworks.com/products/antenna/> There is a product trial link on the right panel beside MATLAB logo. HTH

circa 10 anni fa | 1

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Strange results with xcorr
You may want to get the lags from xcorr too so you can plot the correlation over lags. [C,lags] = xcorr(s1,s2); plot(la...

circa 10 anni fa | 0

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Out of Memory error!
I'm a bit confused by your code snippet. For example, your input, signal, is never used in the function, so I'm not sure what yo...

circa 10 anni fa | 0

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Help required with simulating Ultrasonic Transducers!
Most Phased Array System Toolbox functions today assumes plane wave. So if you are only doing flash mode, then it is applicable....

circa 10 anni fa | 0

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Simulating a known signal at an array of antennas
I would suggest you looking at |phased.Collector| to collect signal and |phased.ReceiverPreamp| to add noise. Say you have a sig...

circa 10 anni fa | 1

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Difference between steering and angle parameter!
The input 'Ang' specifies the direction at which the signal is transmitted. The input 'Steer' only applies when you have a su...

circa 10 anni fa | 1

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coder.extrinsic error! Radar designing
coder.extrinsic should have no effect in regular MATLAB. It only applicable when you try to generate the code. But I'm not sure ...

circa 10 anni fa | 1

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Is the size of antenna array correspond to the number on transmit antenna ???
I don't quite get your question. From your description "an antenna array of size 256x64 at transmitter", I'd say 256x64 is the a...

circa 10 anni fa | 0

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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...

circa 10 anni fa | 0

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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...

circa 10 anni fa | 1

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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...

circa 10 anni fa | 0

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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...

circa 10 anni fa | 2

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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...

circa 10 anni fa | 0

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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...

circa 10 anni fa | 0

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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 ...

circa 10 anni fa | 1

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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...

circa 10 anni fa | 0

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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...

circa 10 anni fa | 0

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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.

circa 10 anni fa | 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]); ...

circa 10 anni fa | 0

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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...

circa 10 anni fa | 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...

circa 10 anni fa | 0

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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

circa 10 anni fa | 0

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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.

circa 10 anni fa | 0

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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...

circa 10 anni fa | 0

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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...

circa 10 anni fa | 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...

circa 10 anni fa | 0

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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...

circa 10 anni fa | 0