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

Volume

4

fYear

2003

fDate

25-28 May 2003

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2003. ISCAS '03. Proceedings of the 2003 International Symposium on

Print_ISBN

0-7803-7761-3

Type

conf

DOI

10.1109/ISCAS.2003.1205933

Filename

1205933