Sensor set switching noise in UWB indoor position tracking

Author

Banerjee, Salil ; Suski, William ; Hoover, Adam

Author_Institution

Dept. of Electr. & Comput. Eng., Clemson Univ., Clemson, SC, USA

fYear

2012

fDate

17-20 Sept. 2012

Firstpage

297

Lastpage

301

Abstract

Trilateration calculations are affected by errors in distance measurements from the set of fixed points to the object of interest. When these errors are systemic, each distinct set of fixed points can be said to exhibit a unique set noise. For ultrawideband (UWB) indoor position tracking, the set of fixed points is a set of sensors measuring the distance to a tracked tag. In this paper we develop a noise model for this sensor set noise, along with a particle filter that uses our set noise model. We test our methods on a real UWB system. Our methods showed an approximately 15% improvement in the accuracy over the raw measurements.

Keywords

distance measurement; indoor communication; particle filtering (numerical methods); radio tracking; ultra wideband communication; UWB indoor position tracking; UWB system; distance measurement; particle filter; sensor set noise model; sensor set switching noise; tracked tag; trilateration calculation; ultrawideband indoor position tracking; Accuracy; Atmospheric measurements; Mathematical model; Noise; Noise measurement; Particle measurements; Switches; local positioning system (LPS); noise modeling; particle filter; set switching; ultra-wideband (UWB);

fLanguage

English

Publisher

ieee

Conference_Titel

Ultra-Wideband (ICUWB), 2012 IEEE International Conference on

Conference_Location

Syracuse, NY

ISSN

2162-6588

Print_ISBN

978-1-4577-2031-4

Type

conf

DOI

10.1109/ICUWB.2012.6340423

Filename

6340423