简介:TheBi-LSmethodbasedonQRdecompositionprovidesaconvenientframeworkforde-velopingefficientsubspacetrackingalgorithms.ToovercometheshortcomingofthebacksubstitutionstepandimprovetheparallelarchitectureoftheBi-LSalgorithms,aBi-LSsubspacetrackingalgorithmbasedonInverseQR(IQR)decompositionisdeveloped.TheproposedIQRiterativealgorithmforsubspacetrackingiswellsuitedfortheparallelimplementationinthesystolicarray.SimulationresultsarepresentedtoillustratetheeffectivenessoftheproposedIQRsubspacetrackingalgorithm.