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A generalized sidelobe canceller employing two-dimensional frequency Invariant filters

Liu, Wei and Weiss, S. and Hanzo, L. (2005) A generalized sidelobe canceller employing two-dimensional frequency Invariant filters. IEEE Transactions on Antennas and Propagation, 53 (7). pp. 2339-2343. ISSN 0018-926X

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Abstract

Based on the generalized sidelobe canceller (GSC), we propose a novel adaptive broadband beamformer, where the quiescent vector and blocking matrix are replaced by a series of two-dimensional frequency invariant filters (FIFs). As opposed to standard beamspace techniques, the number of FIFs is flexible and they are not required to possess a very low sidelobe level. Compared with a standard GSC, a faster convergence speed and a lower computational complexity of its adaptive part are achieved.