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Ultra-Wide Band Sensor Networks for Tracking Point Scatterers or Relays

Luca Reggiani ; Mats Rydström (Institutionen för signaler och system, Kommunikationssystem) ; Tiberi Gianluigi ; Erik G. Ström (Institutionen för signaler och system, Kommunikationssystem) ; Agostino Monorchio
2009 6th International Symposium on Wireless Communication Systems, ISWCS'09; Tuscany; Italy; 7 September 2009 through 10 September 2009 p. 1-5. (2009)
[Konferensbidrag, refereegranskat]

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.


Article number 5285286



Denna post skapades 2009-10-24. Senast ändrad 2016-06-23.
CPL Pubid: 100716

 

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Institutioner (Chalmers)

Institutionen för signaler och system, Kommunikationssystem

Ämnesområden

Signalbehandling

Chalmers infrastruktur