ECM - École Centrale de Marseille : UMR7249 (Pôle de l'étoile - Technopole de Château-Gombert - 38 rue Frédéric Joliot-Curie - 13013 Marseille - France)
Abstract : A method to estimate the set of bias vectors spanning the signal subspace without eigendecomposition is described. Each basis vector can be determined by the Lanczos algorithm. The signal subspace estimates at each frequency are transformed by focusing matrices such that the coherent signal subspace will be constructed for all analysis bands. The performance of the proposed method is shown to be almost the same as that of the classical eigendecomposition method.
M. Frikel, S. Bourennane. Direction finding for wideband signals using fast coherent signal subspace. 1996 IEEE Digital Signal Processing Workshop Proceedings, Sep 1996, Loen, Norway. ⟨10.1109/DSPWS.1996.555529⟩. ⟨hal-01821466⟩