Title :
A low power GPS receiver architecture
Author :
Lee, Horng-wen ; Meng, Teresa H.
Author_Institution :
Stanford Univ., CA, USA
Abstract :
A low power GPS receiver architecture is proposed. Based on a code-phase estimation algorithm, the synchronization time for a GPS receiver can be reduced by 99%, thus allowing a relatively long power-down mode for low power operation. Depending on the actual user behavior, which is monitored by a self-regulated Kalman filter, the proposed GPS receiver can deliver continuous position fixes at the minimum power level
Keywords :
Global Positioning System; Kalman filters; codes; phase estimation; radio receivers; synchronisation; code-phase estimation algorithm; continuous position fixes; long power-down mode; low power GPS receiver architecture; minimum power level; self-regulated Kalman filter; synchronization time; user behavior; CMOS technology; Circuits; Correlators; Earth; Energy consumption; Global Positioning System; Monitoring; Satellite broadcasting; Satellite ground stations; User interfaces;
Conference_Titel :
Global Telecommunications Conference, 1999. GLOBECOM '99
Conference_Location :
Rio de Janeireo
Print_ISBN :
0-7803-5796-5
DOI :
10.1109/GLOCOM.1999.831626
