Title :
Implementation of GPS — C/A tracking loop in FPGA
Author :
Vu, M.N. ; Bojda, P.
Author_Institution :
Univ. of Defense in Brno, Brno, Czech Republic
Abstract :
Costas loop can track received signal up to 75 KHz of carrier variation; It´s able to track GPS signal, where result of Doppler effect is 5 KHz; Correlator uses method FFT and provides value of chip delay every millisecond; C/A generator successfully generates pattern of PRN code and it can adjust phase delay with precision 62.5 ns; The design can tracks GPS signal with precision 62.5 ns.
Keywords :
Doppler effect; Global Positioning System; fast Fourier transforms; field programmable gate arrays; Doppler effect; FFT; FPGA; GPS signal; GPS-C/A tracking loop; PRN code; carrier variation; chip delay; costas loop; frequency 5 kHz; phase delay; received signal;
Conference_Titel :
Digital Avionics Systems Conference (DASC), 2012 IEEE/AIAA 31st
Conference_Location :
Williamsburg, VA
Print_ISBN :
978-1-4673-1699-6
DOI :
10.1109/DASC.2012.6383032
