MATLAB: Beamforming for DOA estimation

beam formingdirection of arrivalPhased Array System Toolbox

I want to simulate few beamforming techniques in matlab for DOA estimation and understand the underlying Mathematics. Please if some one can guide me how and where to start with.

Please if anyone can refer some good articles/books in this regard

Regards Uzmeed

Best Answer

There are several examples on this topic using Phased Array System Toolbox here

https://www.mathworks.com/help/phased/examples.html?category=beamforming-and-direction-finding

For a good introduction on the topic, Krim have a good overview paper

https://ieeexplore.ieee.org/document/526899

Then of course Van Tree's book

https://www.amazon.com/Optimum-Array-Processing-Estimation-Modulation/dp/0471093904

HTH

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MATLAB: Need some help regarding uniform rectangular array in phased array system toolbox

Are you trying to do the beamforming or simply want to see the radiation pattern steered? Here is one simple example showing the latter

c = 3e8; fc = 3e8;
h = phased.URA(10);
hstv = phased.SteeringVector('SensorArray',h,'PropagationSpeed',c);
w = step(hstv,3e8,20);
plotResponse(h,fc,c,'Format','Polar','Weights',w);

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You should use tgtang. Note that what you do here is to synthesize the data. Therefore, even though the radar is not steering, you need to know what is the corresponding directional response of the radar toward the target. Therefore you need to use the direction toward the target.

HTH

Best Answer

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MATLAB: Need some help regarding uniform rectangular array in phased array system toolbox

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