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filtering in frequency domain
Your question is incomplete. You also need to know the sampling rate of the signal. Once you have the sampling rate, together wi...

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Matlab Function block: how to output the result in different instants of time
The MATLAB Function block is called once at each time instance so to do what you want, you need to have a state that updates at ...

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about the amplitude of spectrum by fft
why do you say for sin(2*pi*t) the polarity is reversed? The theoretical equation has 1/(2*1i) as the scaling factor, so the res...

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Pwelch and accuracy/number of points
If you only need to get more points in pwelch plot, I think increasing the number of FFT points in |pwelch| should do the trick....

más de 12 años hace | 0

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Can filter function be replace by a fft/ifft operation?
I don't understand your approach of fft/ifft to filter the signal, so I cannot comment on that. But between |filter| and fft/iff...

más de 12 años hace | 0

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Error using diff(X) command
You probably have a workspace variable named |diff|

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What are the frequencies when N in fft(x,N) is odd?
In general, you can do it as f = (0:N-1)*fs/N If you want to map it to negative frequencies if N is even f(N/2+1...

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Vectorized or Optimized Finite Low Pass Filter
If your signal is uniformly spaced, and if I understand correctly, your alpha can be pre-determined, then this can be done via ...

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How to build a filter from frequency response
You can use |fdesign.arbmag| to do this. The reference page has several examples. http://www.mathworks.com/help/signal/ref/fd...

más de 12 años hace | 0

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How to process audio signal in realtime?
There is an example in the following page that can get you started http://www.mathworks.com/help/matlab/ref/audiorecorder.htm...

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más de 12 años hace | 1

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Problem with psdesttype in pwelch function
I couldn't reproduce this. Sounds like an installation problem. Do you have Signal Processing Toolbox installed? You can use ...

más de 12 años hace | 0

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Can we change the beamwidth in Phased Array System Toolbox?
Hi Ralph, I'm not sure if I get what exactly you ask for. In general, the beamwidth is altered if a set of weights is applied...

más de 12 años hace | 0

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About the generation of correlated random variables
Here is an example sigma = [1 0.2;0.2 1]; x = randn(1000,2)*chol(sigma); corrcoef(x) % verify

más de 12 años hace | 1

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Bandpower function question/problem
The calculation of the fullPower is simply the square of the signal's rms value. As to the fullPower2, the command line help ind...

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Possible to export standalone MATLAB executable WITH toolboxes?
MATLAB Compiler supports many toolboxes, you can find out the list here http://www.mathworks.com/products/compiler/supported/...

más de 12 años hace | 1

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Getting commands from Wavelet Toolbox gui functions
You can click the File menu and choose Generate MATLAB Code in it. HTH

más de 12 años hace | 0

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Missing toolbox from simulink browser library
RF Toolbox and Phased Array System Toolbox currently have no Simulink libraries. Therefore you cannot find them. HTH

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Beamforming Question on Phased Array System Toolbox
Hi Ralph, I'm not hundred percent clear what you are trying to model, but I'll try to get the discussion going You are rig...

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export x and y data from a matlab plot into a matrix
You need to access |XData| and |YData| property, for example: h = plot(1:10); get(h,'XData') get(h,'YData') Here i...

más de 12 años hace | 0

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Generate a radar plot in matlab similar to the one available in excel
If you have access to Phased Array System Toolbox, you can import the data as a custom antenna pattern and then plot it using |p...

más de 12 años hace | 0

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can anyone suggest me code for generating radar signal using barker code sequences.
You can use |phased.PhaseCodedWaveform| if you have access to Phased Array System Toolbox. http://www.mathworks.com/help/phas...

más de 12 años hace | 0

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polar plot Beamforming vector
You can use plotResponse if you have access to Phased Array System Toolbox http://www.mathworks.com/help/phased/ref/phased.ul...

más de 12 años hace | 0

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FIR filter in Matlab for bandpass 250kHz - 700kHz and sampling frequency 250MSPS
If you are interested in the band between 250 kHz and 700 kHz only, then you can decimate your signal to, say 2 MHz first. Then ...

más de 12 años hace | 0

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How 'Blakechart' function draw diagram whitout radar parameters (like peak power ecc.)?
Hi Franktiello, The resulting curve is computed based on the so called free space range, which is essentially the range deriv...

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Changing folder's name from unknown name
d = dir; The above command returns a struct array which has a field called datenum. Each file in the current directory corr...

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How do I delete empty rows in a matrix?
CWOA(all(CWOA==0,2),:)=[]

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Nan and Inf with butterworth filter
If your signal does not contain nan or inf, then likely this is due to the numerical stability of transfer function designed by ...

más de 12 años hace | 1

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Phased Array System tool box
Whether it is included as part of the university license really defers from university to university. Like Niklas suggested, you...

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Using sinc as a filter
Hi Juan, Your filter is as long as your signal, that means whatever you see is basically the transient while Fourier analysis...

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