Spherical Cap Adaptive Antennas for GPS
Jeremy R. Lambert, Constantine A. Balanis and *Dennis DeCarlo
Department of Electrical Engineering, Arizona State University and * Radar and Antenna Systems Division, Naval Air Systems Command (NAVAIR)
The capability of non-planar adaptive antennas for suppressing interference in GPS applications is addressed. An optimization problem based on power minimization of incident signals is formulated, resulting in a solution that maximizes the signal-to-interference- plus-noise ratio at the output of the antenna array and subsequently the carrier-to-noise-ratio of a GPS satellite signal. Spherical adaptations of a planar seven element controlled reception pattern antenna array are presented for various low-horizon interference environments.
IEEE Transactions on Antennas and Propagation
2009
February
57
2
406-413
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