Research on self-multiplication for the solution of GPS signal acquisition

Author

Chao, Zeng ; Yun-Long, Teng ; Wei, Zhang

Author_Institution

Res. Instn. of Electron. Sci. & Technol., Univ. of Electron. Sci. & Technol. of China, Chengdu, China

fYear

2012

fDate

19-20 April 2012

Firstpage

1

Lastpage

4

Abstract

Acquisition of a weak GPS signal faces such challenges as possible bit reversal every 0.02 s and tolerable frequency error inversely proportional to integration interval. Coherent methods can solve these problems efficiently, but these methods need enormous computation and have to work in high-end receivers. This paper presents a new method in software receiver with self-multiplication to avoid all of these problems and simplify the acquisition process dramatically. Besides, the method is able to handle large frequency offset and implement easily.

Keywords

Global Positioning System; pseudonoise codes; receivers; signal detection; GPS signal acquisition; bit reversal; coherent methods; high-end receivers; integration interval; self-multiplication; software receiver; tolerable frequency error; weak GPS signal; Doppler effect; Global Positioning System; Receivers; Signal to noise ratio; Software; Time frequency analysis; Doppler frequency; GPS; pseudo-noise code; self-multiplication; signal acquisition;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Millimeter Wave Circuits and System Technology (MMWCST), 2012 International Workshop on

Conference_Location

Chengdu

Print_ISBN

978-1-4673-1893-8

Type

conf

DOI

10.1109/MMWCST.2012.6238189

Filename

6238189