Direction of arrival estimation in sensor arrays using local series expansion of the received signal
Fredrik Gustafsson, Gustaf Hendeby, David Lindgren, George Mathai, Hans Habberstad · KTH Publication Database DiVA (KTH Royal Institute of Technology) · 2015
A local series expansion of a received signal is pro-posed for computing direction of arrival (DOA) in sensor arrays. The advantages compared to classical DOA estimation methods include general sensor configurations, ultra-slow sampling, smalldimension of the arrays, and that it applies for both narrowbandand wideband signals without prior knowledge of the signals. This makes the method well suited for DOA estimation in sensor networks where size and energy consumption have to be small. We generalize the common far-field assumption of the target toalso include the near-field, which enables target tracking usinga network of sensor arrays in one framework.