Open AccessDesign and implementation of a dual-antenna GPS receiver
Author(s) -
Yung-Wei Lin,
T. H. Hsu,
Tsung-Lin Chen
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1509/1/012029
Subject(s) - global positioning system , gps signals , precision lightweight gps receiver , signal (programming language) , assisted gps , computer science , antenna (radio) , satellite , position (finance) , dual (grammatical number) , gps receiver , gps disciplined oscillator , track (disk drive) , real time computing , telecommunications , engineering , aerospace engineering , art , literature , finance , economics , programming language , operating system
In the Global Position System (GPS) technology, the GPS receiver (GPSR) has to receive the satellite signal to locate its position in a 3D space. For the GPS applications where the GPSR carrier (vehicle) is rotating, the signal-receiving-path could be temporally blocked by the attitude of the vehicle. And, once the GPSR loses track of the signal, it takes at least 6 seconds for the GPSR to resume its positioning task. This paper proposes a novel dual-antenna GPSR system (hardware architecture and algorithms) that can solve the intermittent signal problem when the vehicle is rotating and continuing on its positioning task. Current experimental results indicate that the proposed GPSR design can successfully output its position when the vehicle is rotating at 7.5 rpm. At 22 rpm, some satellite signals remain on-lock but some do not, depending on the strength of receiving signals.