Stochastic modeling of pseudolite clock errors using enhanced AR methods

Autor:	Dirk Dahlhaus, Mohammad Alawieh, L. Patino-Studencka
Rok vydání:	2010
Předmět:	symbols.namesake Autoregressive model Computer science Control theory Performance comparison Communications satellite Process (computing) symbols Markov process Pseudolite Kalman filter Markov model
Zdroj:	CSNDSP
DOI:	10.1109/csndsp16145.2010.5580435
Popis:	In a pseudolites based real-time locating system, autoregressive (AR) techniques are applied to model the stochastic behavior of the pseudolite clocks errors. A stable model to predict the clock deviations is obtained from the AR parameters of a process smoothed by a Kalman filter. A performance comparison of the proposed scheme with an approach based on a Markov model is performed using measurements from a real-world experiment. It is shown that the proposed scheme can predict the clock deviations with an accuracy of picoseconds leading to location errors of few centimeters.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::4de1b42db8f8f8a98bb359595bedf3cb https://doi.org/10.1109/csndsp16145.2010.5580435 Zobrazit plný text záznamu