Réponse apportée
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...

presque 12 ans il y a | 1

| A accepté

Réponse apportée
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....

presque 12 ans il y a | 0

| A accepté

Réponse apportée
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...

presque 12 ans il y a | 0

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

presque 12 ans il y a | 6

| A accepté

Réponse apportée
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...

presque 12 ans il y a | 4

| A accepté

Réponse apportée
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 ...

presque 12 ans il y a | 0

| A accepté

Réponse apportée
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...

presque 12 ans il y a | 0

Réponse apportée
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...

presque 12 ans il y a | 0

presque 12 ans il y a | 1

Réponse apportée
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 ...

environ 12 ans il y a | 0

Réponse apportée
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...

environ 12 ans il y a | 0

| A accepté

Réponse apportée
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

environ 12 ans il y a | 1

Réponse apportée
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...

environ 12 ans il y a | 0

| A accepté

Réponse apportée
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/...

environ 12 ans il y a | 1

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

environ 12 ans il y a | 0

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

environ 12 ans il y a | 0

| A accepté

Réponse apportée
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...

environ 12 ans il y a | 0

| A accepté

Réponse apportée
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...

environ 12 ans il y a | 0

Réponse apportée
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...

environ 12 ans il y a | 0

Réponse apportée
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...

environ 12 ans il y a | 0

Réponse apportée
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...

environ 12 ans il y a | 0

Réponse apportée
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 ...

environ 12 ans il y a | 0

Réponse apportée
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...

environ 12 ans il y a | 0

Réponse apportée
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...

environ 12 ans il y a | 0

| A accepté

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

environ 12 ans il y a | 0

| A accepté

Réponse apportée
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 ...

environ 12 ans il y a | 1

Réponse apportée
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...

environ 12 ans il y a | 0

Réponse apportée
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...

environ 12 ans il y a | 1

| A accepté

Réponse apportée
How can I plot desired angle and undesired angle using polar plot?
You could try plotResponse if you have access to Phased Array System Toolbox http://www.mathworks.com/help/phased/ref/phased....

environ 12 ans il y a | 0

| A accepté

Réponse apportée
FIlter design without using FDATOOL
I would still recommend you do do it first via FDATool and when you are satisfied with the response, export it to Simulink using...

environ 12 ans il y a | 0