S. Wielandt, M. V. Shah, Nazeer Akram Athaullah, Uzair Mubarak Sayyad, R. Yadav, Rahul Mahesh Dharamdasani, L. D. Strycker, M. Kuhn
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2.4 GHz single anchor node indoor localization system with angle of arrival fingerprinting
Location prevails as a piece of crucial information for decision-making processes. Whereas positioning in outdoor environments can be mainly attributed to Global Navigation Satellite Systems, no single technology can be appointed for accurate indoor localization. Many approaches exist, mostly relying on line-of-sight propagation from a mobile node to multiple anchor nodes. These solutions not only require complex installations, but in many cases they also make inapplicable assumptions about indoor environments. This paper investigates an indoor localization system with a single anchor node, estimating the position of an omnidirectional mobile transmitter by fingerprinting angle of arrival data. Measurements were taken with a 10-elements uniform linear antenna array at a 2.47 GHz carrier frequency. Three different scenarios were defined for the evaluation of localization errors and the influence of spatial smoothing, a technique for signal decorrelation.
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