Performance analysis of duty-cycle power saving techniques in GNSS mass-market receivers

TitlePerformance analysis of duty-cycle power saving techniques in GNSS mass-market receivers
Publication TypeConference Paper
Year of Publication2014
AuthorsLinty N, Lo Presti LL, Dovis F, Crosta P
Conference NameProceedings of the 2014 IEEE/ION Position, Location and Navigation Symposium (PLANS 2014)
PublisherIEEE - INST ELECTRICAL ELECTRONICS ENGINEERS INC
Conference LocationPiscataway, NJ
Keywordsduty cycle tracking, GNSS, open-loop, power saving
Abstract

The scope of this work is the analysis and assessment of power saving duty cycle techniques for GNSS receivers. One of the key design drivers of mass-market commercial GNSS devices is indeed power consumption. Different techniques are analyzed and a particular method, based on the alternation of active and sleep states, is implemented in a software receiver based on open-loop processing. The main issues related to the parameters re-initialization after the sleep state are described and a solution is proposed. Then, accuracy and performance are evaluated, for different signal power and in three different scenarios, simulating a static, a pedestrian and an automotive user. Results prove the good accuracy of the technique proposed in all conditions, confirming its validity also for applications different from the consumer market

URLhttp://porto.polito.it/2556762/
DOI10.1109/PLANS.2014.6851479