A software GPS receiver for weak signals

Author

Lin, D.M. ; Tsui, J.B.Y.

Author_Institution

RF Technol. Div., Air Force Res. Lab., Wright Patterson Air Force Base, OH, USA

Volume

3

fYear

2001

fDate

20-24 May 2001

Firstpage

2139

Abstract

The paper reports the approach and results of a stand alone software Global Positioning System (GPS) receiver. The receiver is specially designed to receive weak signals without aids from other information sources. The approaches for the acquisition, first navigation phase detection, and tracking are discussed. The different kinds of thresholds with different signal-to-noise ratio (SNR) are developed. Under the best operating condition a signal can be 15 dB below the normal noise level and still be processed.

Keywords

Global Positioning System; computerised navigation; radio receivers; radio tracking; signal detection; telecommunication computing; Global Positioning System; SNR; first navigation phase detection; radionavigation; signal acquisition; signal-to-noise ratio; software GPS receiver; stand alone GPS receiver; thresholds; tracking; weak signal reception; Bandwidth; Buildings; Force sensors; Global Positioning System; Navigation; Phase detection; Signal design; Signal generators; Signal processing; Temperature;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 2001 IEEE MTT-S International

Conference_Location

Phoenix, AZ, USA

ISSN

0149-645X

Print_ISBN

0-7803-6538-0

Type

conf

DOI

10.1109/MWSYM.2001.967337

Filename

967337