Respondida
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...

casi 12 años hace | 1

| aceptada

Respondida
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....

casi 12 años hace | 0

| aceptada

Respondida
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...

casi 12 años hace | 0

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

casi 12 años hace | 6

| aceptada

Respondida
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...

casi 12 años hace | 4

| aceptada

Respondida
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 ...

casi 12 años hace | 0

| aceptada

Respondida
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...

alrededor de 12 años hace | 0

Respondida
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...

alrededor de 12 años hace | 0

alrededor de 12 años hace | 1

Respondida
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 ...

alrededor de 12 años hace | 0

Respondida
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...

alrededor de 12 años hace | 0

| aceptada

Respondida
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

alrededor de 12 años hace | 1

Respondida
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...

alrededor de 12 años hace | 0

| aceptada

Respondida
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/...

alrededor de 12 años hace | 1

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

alrededor de 12 años hace | 0

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

alrededor de 12 años hace | 0

| aceptada

Respondida
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...

alrededor de 12 años hace | 0

| aceptada

Respondida
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...

alrededor de 12 años hace | 0

Respondida
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...

alrededor de 12 años hace | 0

Respondida
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...

alrededor de 12 años hace | 0

Respondida
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...

alrededor de 12 años hace | 0

Respondida
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 ...

alrededor de 12 años hace | 0

Respondida
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...

alrededor de 12 años hace | 0

Respondida
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...

alrededor de 12 años hace | 0

| aceptada

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

alrededor de 12 años hace | 0

| aceptada

Respondida
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 ...

alrededor de 12 años hace | 1

Respondida
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...

alrededor de 12 años hace | 0

Respondida
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...

alrededor de 12 años hace | 1

| aceptada

Respondida
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....

alrededor de 12 años hace | 0

| aceptada

Respondida
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...

alrededor de 12 años hace | 0