Title :
Real-time acquisition and tracking for GPS receivers
Author :
Alaqeeli, Abdulqadir ; Starzyk, Janusz ; van Graas, Frank
Author_Institution :
Sch. of Electr. Eng. & Comput. Sci., Ohio Univ., Athens, OH, USA
Abstract :
Current GPS receivers spend much time in base-band processing, performing acquisition and tracking. This is due to the large number of required operations in the software-based signal processing. This paper presents a novel signal acquisition and tracking method that reduces the number of operations, simplifies hardware implementation and decreases the acquisition time. The implementation of this method in an FPGA provides very fast processing of incoming GPS samples that satisfies real-time requirements.
Keywords :
Global Positioning System; correlation methods; fast Fourier transforms; field programmable gate arrays; logic design; radio receivers; signal detection; FFT; FPGA implementation; GPS receivers; acquisition time reduction; base-band processing; code averaging correlation; global positioning system; real-time signal acquisition; real-time signal tracking; Computer science; Correlators; Digital signal processing; Field programmable gate arrays; Flexible printed circuits; Frequency; Global Positioning System; Hardware; Signal processing; Signal processing algorithms;
Conference_Titel :
Circuits and Systems, 2003. ISCAS '03. Proceedings of the 2003 International Symposium on
Print_ISBN :
0-7803-7761-3
DOI :
10.1109/ISCAS.2003.1205933
