Title :
A method for dead reckoning parameter correction in pedestrian navigation system
Author :
Jirawimut, R. ; Ptasinski, P. ; Garaj, V. ; Cecelja, F. ; Balachandran, W.
Author_Institution :
Brunel Univ., Uxbridge, UK
Abstract :
This paper presents a method for correcting dead reckoning parameters, which are heading and step size, for a pedestrian navigation system. In this method, the compass bias error and the step size error can be estimated during the period that the GPS signal is available. The errors are used for correcting those parameters to improve the accuracy of position determination using only the dead reckoning system when the GPS signal is not available. The results show that the parameters can be estimated with reasonable accuracy. Moreover, the method also helps increase the positioning accuracy when the GPS signal is available
Keywords :
Global Positioning System; Kalman filters; compasses; error correction; GPS signal; compass bias error; dead reckoning parameter correction; extended Kalman filter; heading sensor; integrated system; measurement model; orientation sensor; pedestrian navigation system; position determination accuracy; positioning accuracy; state equation; step size error; time interval; Dead reckoning; Error correction; Frequency estimation; Frequency measurement; Global Positioning System; Magnetic sensors; Navigation; Position measurement; Size measurement; Velocity measurement;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2001. IMTC 2001. Proceedings of the 18th IEEE
Conference_Location :
Budapest
Print_ISBN :
0-7803-6646-8
DOI :
10.1109/IMTC.2001.929465
