As is said in TIDEP-01023, "the spacial covariance matrix is estimated as an average over the chirps in the frame" .
Hi, I have several questions about capon beamforming.
1) Why the spacial matrix uses the sample points of multiple chirps , but NOT the sample points of several range bins in one chirp ?
2) Using the sample points of multiple chirps might cause the problem of coherent signals which would decrease the rank
of signal covariance matrix Rs (NOT sample covariance matrix) then degrade the performance of the Capon and MUSIC-like DOA algorithms and so on.
Please help to explain it for me.
Thanks.
