Low Complexity Acoustic DOA Estimation with a Pair of Orthogonal Dipoles and an Omni Directional Sensor

A low complexity frequency domain bearing estimation technique is described in this paper. The technique presented makes use of a pair of orthogonal dipoles or differential sensors along with an omni directional pressure sensor for the bearing estimation. The paper describes the theory from first principles with an overview of the simulation results and also covers the proof of concept experimental validation of the same.