TY - JOUR
T1 - Adaptive Processing at Multiple Frequencies Using the same Antenna Array Consisting of Dissimilar Non-uniformly Spaced Elements over an Imperfectly Conducting Ground
AU - Salama, Dojana
AU - Sarkar, Tapan Kumar
AU - Abdallah, Mohammad N.
AU - Yang, Xiaopeng
AU - Salazar-Palma, Magdalena
PY - 2018/1/1
Y1 - 2018/1/1
N2 - In this paper, an adaptive processing is carried out simultaneously at multiple frequencies using the same antenna array consisting of non-uniformly spaced dissimilar antenna elements. The antenna array may not be deployed in free space but may be located over an imperfect ground plane. First to correct for the various electromagnetic effects affecting the array performance, an electromagnetic transformation technique is described that can compensate for the various coupling effects in the non-planar array consisting of non-uniformly spaced dissimilar antenna elements operating over an imperfect ground. Then, a direct data domain least squares method is used to extract the signal-of-interest (SOI) in the presence of fluctuating jammer and clutter simultaneously at multiple frequencies, using a single snap shot of the data. In this procedure there is no need to have any information about noise or clutter, whatsoever.
AB - In this paper, an adaptive processing is carried out simultaneously at multiple frequencies using the same antenna array consisting of non-uniformly spaced dissimilar antenna elements. The antenna array may not be deployed in free space but may be located over an imperfect ground plane. First to correct for the various electromagnetic effects affecting the array performance, an electromagnetic transformation technique is described that can compensate for the various coupling effects in the non-planar array consisting of non-uniformly spaced dissimilar antenna elements operating over an imperfect ground. Then, a direct data domain least squares method is used to extract the signal-of-interest (SOI) in the presence of fluctuating jammer and clutter simultaneously at multiple frequencies, using a single snap shot of the data. In this procedure there is no need to have any information about noise or clutter, whatsoever.
KW - Adaptive Antennas
KW - direct data domain least squares approach
KW - imperfect ground plane
KW - multiple frequencies
KW - mutual coupling compensation
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U2 - 10.1109/TAP.2018.2877120
DO - 10.1109/TAP.2018.2877120
M3 - Article
AN - SCOPUS:85055171096
JO - IEEE Transactions on Antennas and Propagation
JF - IEEE Transactions on Antennas and Propagation
SN - 0018-926X
ER -