Title :
On the code tracking performance of GNSS modulation
Author :
Côté, Francois D. ; Psaromiligkos, Ioannis N. ; Gross, Warren J.
Author_Institution :
Dept. of Electr. & Comput. Eng., McGill Univ., Montreal, QC, Canada
Abstract :
A Bayesian lower bound is proposed as a new baseline for the positioning accuracy provided by satellite radionavigation signals in the presence of Gaussian noise and interference. Positioning accuracy is typically investigated using the Crame¿r-Rao Bound (CRB), but the CRB does not always constitute a tight benchmark. The proposed bound is used to obtain a threshold on signal energy that indicates the suitability of the CRB. The threshold reveals that a large signal bandwidth cannot reliably compensate for low signal energy in order to sustain positioning accuracy.
Keywords :
Bayes methods; Gaussian noise; interference (signal); position control; satellite navigation; satellite tracking; Bayesian lower bound; Cramer-Rao bound; GNSS modulation; Gaussian noise; code tracking performance; interference; positioning accuracy; satellite radionavigation signals; tight benchmark; Bandwidth; Bayesian methods; Delay effects; Delay estimation; Global Positioning System; Interference; Low pass filters; Modulation coding; Satellite navigation systems; Timing; Cramér-Rao Bound (CRB); Galileo; Global Navigation Satellite System (GNSS); Global Positioning System (GPS); Positioning; Ziv-Zakai Bound (ZZB); code tracking;
Conference_Titel :
Information Sciences and Systems (CISS), 2010 44th Annual Conference on
Conference_Location :
Princeton, NJ
Print_ISBN :
978-1-4244-7416-5
Electronic_ISBN :
978-1-4244-7417-2
DOI :
10.1109/CISS.2010.5464809
