Extended beamforming by optimum 2-D sparse arrays

Abstract

This paper presents an extended beamforming method by two-dimensional (2-D) Sparse Arrays. The authors have proposed optimum 2-D sparse arrays and evaluated them in the sense of direction of arrival (DOA) estimation accuracy. We develop a way of beamforming by the difference co-array of 2-D sparse arrays, and evaluate their beamforming performance as well as bit error rate (BER) characteristics through computer simulation.