1. Impact of Antennas on the Anchor-less Indoor Localization of a Static IR-UWB Pair
- Author
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B. Uguen, V. La Tosa, Benoit Denis, S. Bories, Commissariat à l'énergie atomique et aux énergies alternatives - Laboratoire d'Electronique et de Technologie de l'Information (CEA-LETI), Direction de Recherche Technologique (CEA) (DRT (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Institut d'Électronique et des Technologies du numéRique (IETR), Université de Nantes (UN)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), CEA-LETI, Université de Nantes (UN)-Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), and Nantes Université (NU)-Université de Rennes 1 (UR1)
- Subjects
realistic antenna ,angles of arrival ,Computer science ,indoor characterization ,Ultra-wideband ,maximum likelihood estimation ,02 engineering and technology ,eMAL tree algorithm ,impulse radio ,law.invention ,extended MAL algorithm ,UWB communication ,Time of arrival ,0203 mechanical engineering ,Dimension (vector space) ,maximum averaged likelihood ,[INFO.INFO-TS]Computer Science [cs]/Signal and Image Processing ,law ,angles of departure ,0202 electrical engineering, electronic engineering, information engineering ,ultra wideband communication ,Dipole antenna ,room dimension ,indoor communication ,ultra wideband antennas ,angle of incidence ,business.industry ,Frame (networking) ,Process (computing) ,020302 automobile design & engineering ,020206 networking & telecommunications ,Tree (data structure) ,direction-of-arrival estimation ,anchor-less indoor localization ,UWB antenna ,time of arrival ,Path (graph theory) ,static IR-UWB pair ,business ,Algorithm ,[SPI.SIGNAL]Engineering Sciences [physics]/Signal and Image processing ,Computer network - Abstract
International audience; This paper investigates the impact of realistic antennas on joint anchor-less localization and indoor characterization based on Impulse Radio (IR) Ultra Wideband (UWB) communications. In this frame, the Maximum Averaged Likelihood (MAL) algorithm and its extended version are considered, both relying on a tree approach consisting in two stages. The first part of the process, which is common to both algorithms, exploits the cross-correlation between received and locally predicted paths. The second stage calculates the averaged likelihood of measured path parameters obtained in the previous step, but different measurements are used for MAL and extended MAL (eMAL). In the first algorithm, only the Angle of Incidence (AoI) and the Time of Arrival (ToA) are considered, whereas the eMAL tree algorithm also accounts for two couples of Angles of Departure (AoDs) and Angles of Arrival (AoAs). The estimation errors of both nodes coordinates and room dimension obtained with the two algorithms are compared for three realistic UWB antennas. Finally, the remaining algorithm-independent ambiguities (i.e. resulting from scenario and geometry) are discussed.
- Published
- 2010
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