Wideband DOA Estimation Using a Frequency-Domain Frequency-Invariant Beamformer and a Matrix Pencil Method

Abstract

We describe an extension of the wideband direction-of-arrival (DOA) estimation method using a frequency-domain frequency-invariant beamformer (FDFIB). The technique uses the Matrix Pencil Method (MPM) instead of conventional methods based on the eigen-structure of the input covariance matrix. MPM offers excellent resolution compared to conventional methods.