Influence of antenna array constellation on the accuracy of angle-of-arrival estimation in a multipath environment
Conference: WSA 2015 - 19th International ITG Workshop on Smart Antennas
03/03/2015 - 03/05/2015 at Ilmenau, Deutschland
Proceedings: WSA 2015
Pages: 5Language: englishTyp: PDF
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Authors:
Lindner, Thomas; Patino-Studencka, Lucila; Thielecke, Joern (Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Institute of Information Technology (Communication Electronics), Am Wolfsmantel 33, 91058 Erlangen, Germany)
Hadaschik, Niels (Fraunhofer Institute for Integrated Circuits (IIS), Nordostpark 93, 90411 Nürnberg, Germany)
Abstract:
Angle-of-arrival estimation is a widely used localisation method. However, multipath propagation leads to decreased performance. In this paper an expression for the Cramer- Rao lower bound for angle-of-arrival estimation with a known transmitted signal in a two path environment is derived. The influence of array structure on the achievable accuracy and the capability of signal separation is investigated. It is shown that sparse array structures provide a lower Cramer-Rao bound as long as uniqueness is preserved.