Title :
Cycle-slip detection, determination, and validation for triple-frequency GPS
Author :
Dai, Zhen ; Knedlik, Stefan ; Loffeld, Otmar
Abstract :
A real-time algorithm to detect, determine and validate the cycle-slips for triple-frequency GPS is proposed. By evaluating different geometry-free phase combinations, two optimal geometry-free combinations are selected for cycle-slip detection. In order to determine the size of the cycle-slips, the cycle-slip search space will be decorrelated using LAMBDA technique. The actual cycle-slip candidate will then be identified according to the least-squares principle. An efficient validation approach is also suggested. Simulations indicate the reliability of the entire algorithm.
Keywords :
Global Positioning System; least squares approximations; Global Positioning System; LAMBDA technique; cycle-slip detection; cycle-slip determination; cycle-slip search space; cycle-slip validation; geometry-free phase combinations; least-squares principle; Clocks; Decorrelation; Event detection; Frequency; Global Positioning System; Phase detection; Phase measurement; Satellites; Sequential analysis; Signal to noise ratio;
Conference_Titel :
Position, Location and Navigation Symposium, 2008 IEEE/ION
Conference_Location :
Monterey, CA
Print_ISBN :
978-1-4244-1536-6
Electronic_ISBN :
978-1-4244-1537-3
DOI :
10.1109/PLANS.2008.4570113
