A New FFT-Based Acquisition Algorithm for GPS Signals

Author

Yi, Jiang ; Shufang, Zhang ; Qing, Hu ; Xiaowen, Sun

Author_Institution

Inf. Eng. Coll., Dalian Maritime Univ., Dalian

Volume

2

fYear

2008

fDate

21-22 Dec. 2008

Firstpage

416

Lastpage

419

Abstract

General acquisition algorithms for GPS signals in time domain and frequency domain have some advantages and disadvantages. A new modified averaging circular correlation algorithm based on FFT is proposed and its realization process is given in this paper. Compared with the general algorithms its performance is improved. This novel algorithm is demonstrated using actual sampling data of GPS signals in Matlab environment. Simulation results show that it has fast acquisition ability and is easy to implement. It is an efficient and low cost acquisition algorithm for GPS receivers.

Keywords

Global Positioning System; correlation methods; fast Fourier transforms; frequency-domain analysis; signal detection; time-domain analysis; FFT; GPS signals; Matlab environment; frequency domain; general acquisition algorithms; modified averaging circular correlation algorithm; time domain; Computational complexity; Costs; Educational institutions; Educational technology; Frequency domain analysis; Geoscience and remote sensing; Global Positioning System; Hardware; RF signals; Sun; FFT; GPS; acquisition; circular correlation;

fLanguage

English

Publisher

ieee

Conference_Titel

Education Technology and Training, 2008. and 2008 International Workshop on Geoscience and Remote Sensing. ETT and GRS 2008. International Workshop on

Conference_Location

Shanghai

Print_ISBN

978-0-7695-3563-0

Type

conf

DOI

10.1109/ETTandGRS.2008.8

Filename

5070394