Answered
how to get expectations for various equations?
When you do |A'| in MATLAB, you are taking Hermitian transpose of matrix A. For example A = [1+1i 1-1i]; A' HTH

8 years ago | 0

Answered
How to use beamformer in matlab 2016a using step()
You need to pass in an extra input representing the desired beamforming direction because you set the DirectionSource to 'Input ...

8 years ago | 0

| accepted

Answered
How can I use Phased Array System Toolbox to implement delay and sum beamforming for wavefile?
The following demo covers some basics and can serve as a good starting point <https://www.mathworks.com/help/phased/examples/...

8 years ago | 0

8 years ago | 0

Answered
Multiple target detection using FMCW Radar
There are several FMCW radar related examples in Phased Array System Toolbox. You can find them at <https://www.mathworks.com...

8 years ago | 0

Answered
Creating a scatter plot with three variables.
I would use |scatterm|, something like scatterm(X,Y,5,Z) The reference page can be found at <https://www.mathworks.co...

8 years ago | 0

Answered
How can I plot the first 1000 numbers in my matrix?
You can do y = x(1:167,:) where x is the original data matrix. HTH

8 years ago | 0

Answered
Why is fft2 not giving me the correct results?
First of all, it seems like your data is just a vector? In that case you can just do 1D fft, like fft(x) As to your resu...

8 years ago | 1

| accepted

Answered
How do i retrieve a specific value from a 2D matrix?
You can use B(A==earliercalculatedvalue) HTH

8 years ago | 1

Answered
Why are the results of two spectral density estimation methods（periodogram and pwelch） inconsistent? If the amplitude of the power spectrum density of random signals is concerned, which spectral estimation is accurate?
Your bin widths are different. In Welch's method, you are doing in only 500 points FFT. However, the power is given by multiplyi...

8 years ago | 1

Answered
How to make a stairs + semilogx plot?
I don't know if this is what you want, but here is a quick example to combine stair plot with log scale in x stairs(1:10,1:...

8 years ago | 1

| accepted

Answered
What exactly is operating frequency in creating a beamformer object?
You are using a subband beamformer. These beamformer assumes that the signal is modulated to a carrier frequency, i.e., the oper...

8 years ago | 0

| accepted

Answered
Implement filter that cannot be normed to a(1) = 1
You will pad 4 zeros in front of numerator. HTH

8 years ago | 0

Answered
Plotting input data of DOA algorithm blocks in "Beamscan and MVDR Direction of Arrival Estimation on a ULA"
That makes sense, there is indeed two complex signals and 4 lines. However, because the two signal are conjugate to each other, ...

8 years ago | 0

Answered
Plotting input data of DOA algorithm blocks in "Beamscan and MVDR Direction of Arrival Estimation on a ULA"
Are you referring to the output after the Narrowband Rx Array block? If so, they are matrices of complex signal that includes de...

8 years ago | 0

Answered
Phased Array System Toolbox License
This forum is probably not the best place to ask license related questions. I would suggest you to first contact your school's s...

8 years ago | 1

Answered
Rotation of CustomAntennaElement data
Could you clarify what you want to achieve? The elements in Phased Array System Toolbox assumes the element normal at 0 azim...

8 years ago | 1

Answered
matrix of circulating vectors without loop
Not necessarily better in performance, but if you really want to avoid explicitly calling a loop, try y = arrayfun(@(r)gall...

8 years ago | 1

| accepted

Answered
Periodogram and Spectral estimate
Omega is your frequency. From the equation, it could be the angular frequency so it would be from -pi/T to pi/T where T is your ...

8 years ago | 0

Answered
phased array beam stearing function
It looks like the default feed location is too close for this configuration. If you set it to pm.FeedOffset = [-pm.Length/4...

8 years ago | 0

Answered
Question about radar target classification example in Phased Array System Toolbox
The simulation used a pulse radar but I think the concept is independent to what type of radar one is using. It just looks at th...

8 years ago | 0

Answered
which type of kalman filter do i have to implement for unknown dynamic model's system?
Each Kalman filter is tied to a certain dynamic model. If you don't have knowledge of your dynamic model, one possible approach ...

8 years ago | 0

| accepted

Answered
matched filtering between two signals
Here is an example to get you started. Once you get the filtered signal, the peak indicates where the echo starts. <https://w...

8 years ago | 0

| accepted

Answered
How to use a matched filter to find a single in an array of data?
Here is some relevant information <https://www.mathworks.com/matlabcentral/answers/4502-matched-filter> Alternatively, you...

8 years ago | 0

Answered
how to do Polar plot?
There is an entry on File Exchange for radar plot <https://www.mathworks.com/matlabcentral/fileexchange/59561-spider--radar--...

8 years ago | 0

Answered
How to write a OS CFAR algorithmus for RADAR using MATLAB
If you want to understand the theory behind, the reference listed in the help is a good start. Richards, M. A. Fundamentals o...

8 years ago | 0

Answered
Filling in gaps incrementally
Do you always have a fully populated first column as the time vector? If so, you can try the following to do the linear interpol...

8 years ago | 0

| accepted

Answered
why is Simulink Linear FM output of size [100 1]?
Could you provide more context? If you cannot share the model, it would be helpful if you can at least share a snapshot of the d...

8 years ago | 0

Answered
Speed of target in radar
I think you asked the same question yesterday, did you delete that one? Please do not delete the question and restart a new one....

8 years ago | 0

Answered
What is the difference between filter and conv?
I don't know the detail about your signal. But if the question is between |filter| and |conv|, they are only similar when you ta...

8 years ago | 1