Title :
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
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;
Conference_Titel :
Microwave Symposium Digest, 2001 IEEE MTT-S International
Conference_Location :
Phoenix, AZ, USA
Print_ISBN :
0-7803-6538-0
DOI :
10.1109/MWSYM.2001.967337
