Ultra-Wide Band Sensor Networks for Tracking Point Scatterers or Relays
Paper in proceedings, 2009

In this paper we investigate the possible benefits and drawbacks of using a previously proposed “soft” ranging algorithm for tracking moving objects in indoor scenarios. The objects considered in this work could be either passive point scatterers or active relays. A number of ultra-wide band transceivers are deployed throughout the environment, and they are used to estimate multi-path propagation delays, that constitute the input data to the tracking algorithm. The motivation behind this work is that “soft” ranging algorithm enables both estimation of ranging error on a measurement-by-measurement basis, and also a straight-forward approach to multiple-hypotheses testing (MHT). Thus, this type of ranging algorithm is likely to fit well into a filter-bank tracking system. Computer simulations based on Ray-tracing propagation data indicates that the proposed approach enables both more robust and also more accurate positioning than when a more conventional threshold-based technique is used for ranging.

Author

Luca Reggiani

Polytechnic University of Milan

Mats Rydström

Chalmers, Signals and Systems, Communication and Antenna Systems, Communication Systems

Tiberi Gianluigi

University of Pisa

Erik Ström

Chalmers, Signals and Systems, Communication and Antenna Systems, Communication Systems

Agostino Monorchio

University of Pisa

2009 6th International Symposium on Wireless Communication Systems, ISWCS'09; Tuscany; Italy; 7 September 2009 through 10 September 2009

1-5

Subject Categories

Signal Processing

DOI

10.1109/ISWCS.2009.5285286

ISBN

978-142443584-5

More information

Latest update

4/4/2018 1