Dear All,
Assume i have an array of uniform linear antenna array of 3 antennas, distance uncertainties and other imperfections might perturb the steering vector away from the true one. Thus, DoA estimation using ML or subspace techniques would fail.
I would like to know if it is possible to calibrate when the receive number of signals are more than 3 (Due to severe multipath)????
Thank you in advance.
Thank you Mr. Chandu.
Could you, kindly, attach a reference since switching combining techniques are quite broad.
Hello,
Usually, the number of antennas in an array should be greater than the number of received signals. This problem is hard because you receive coherent signals due to multipath effect and the number of elements is equal to the number of sources. For this case, you have to use the techniques based on virtual arrays and using methods which use moments or cumulants. Another way to find better performance is to use spatial smoothing pre-processing.
Dear Mr. Shahriar,
Thank you for this,
Could you please share a document for this ?
Best regards
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