International Symposium on Antennas and Propagation
Realizing Sample Matrix Inversion (SMI) in Digital BeamForming (DBF) System
Hao Lei, Zaiping Nie, Feng Yang,
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Digital beamforming is a kind signal processing in adaptive array antennas, based on the disposal of data produced by sampling signal. DBF can adjust beam pattern based on the arrival direction of signal, and produce pattern nulling in the direction of disturb signal. Sample matrix inversion(SMI). Algorithm is one kind method in DBF. This paper will introduce my work on simulating and verifying QRD-SMI algorithm based on Virtex 5, an popular FPGA chip produced by XILINX company. QR matrix decomposition is used to transfer matrix to a upper triangle matrix which is more easily to solve the inverse matrix.