Modelling of free-running clocks for a virtually synchronized microwave locating system

For a microwave locating system virtual synchronisation of low-cost free-running transmitter clocks is proposed. The synchronisation strategy is based on modelling the transmitter clocks. A stable stochastic model was designed by analysing the correlation function of the observables in the locating...

Full description

Saved in:
Bibliographic Details
Published in2009 6th Workshop on Positioning, Navigation and Communication pp. 151 - 155
Main Authors Patino-Studencka, L., Eidloth, A., Thielecke, J.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.03.2009
Subjects
1f noise
Clocks
Frequency modulation
Frequency synchronization
Navigation
Phase noise
positioning
Power system modeling
Signal to noise ratio
State estimation
Synchronisation
Transmitters
Online AccessGet full text

Cover

More Information
Summary:For a microwave locating system virtual synchronisation of low-cost free-running transmitter clocks is proposed. The synchronisation strategy is based on modelling the transmitter clocks. A stable stochastic model was designed by analysing the correlation function of the observables in the locating system i.e. time of arrival and carrier phase. Exploiting this model in a Kalman filter, a reference receiver estimates the current clock states and distributes them periodically to the mobile receivers enabling them to predict the transmitter clock deviations between updates. The impact of this synchronization scheme on the position accuracy using both simulated and real data is analysed.
ISBN:9781424432929
1424432928
DOI:10.1109/WPNC.2009.4907819