A Generalised Sidelobe Canceller Employing Two-Dimensional Frequency Invariant Filters
Liu, W, Weiss, S and Hanzo, L (2005) A Generalised Sidelobe Canceller Employing Two-Dimensional Frequency Invariant Filters. IEEE Transactions on Antennas and Propagation, 2339-2343.
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Based on the generalised sidelobe canceller (GSC), in this paper we propose a novel broadband adaptive beamformer, where the quiescent vector and blocking matrix are replaced by a series of two-dimensional frequency invariant filters (FIFs). A beam pointing towards the signal of interest takes the role of the quiescent vector, whereas the blocking matrix is formed by a number of beams covering the remaining space, with a zero response towards the signal of interest. As opposed to standard beamspace techniques, the FIFs are felxible in their numkber and are not required to posses a very low sidelobe level. Compared with a standard GSC, a faster convergence speed and lower computational complexity for the adaptive part can be achieved due to a shorter adaptive filter length.
|Divisions:||Faculty of Physical Sciences and Engineering > Electronics and Computer Science > Comms, Signal Processing & Control
|Date Deposited:||28 Jan 2005|
|Last Modified:||02 Mar 2012 01:30|
|Further Information:||Google Scholar|
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