Title :
Phase measurements using direct conversion AM radio navigation
Author :
Dinh, Anh ; Mason, Ralph ; Palmer, Ron ; Runtz, Ken
Author_Institution :
Regina Univ., Sask., Canada
Abstract :
This paper presents a number of approaches for precision navigation using AM broadcasts and analog phase measurement techniques. By mixing signals down to a low intermediate frequency (IF) and locking on with a phase lock loop (PLL), phase differences can be measured with ±0.5° accuracy. This provides ±0.32 meters range accuracy with a 1300 kHz AM radio signal
Keywords :
amplitude modulation; phase measurement; radio broadcasting; radio receivers; radionavigation; 1300 kHz; AM broadcasts; analog phase measurement; direct conversion AM radio navigation; intermediate frequency; mixing; phase lock loop; precision navigation; Broadband antennas; Costs; Detectors; Frequency measurement; Phase detection; Phase locked loops; Phase measurement; Q measurement; Radio navigation; Receivers;
Conference_Titel :
WESCANEX 97: Communications, Power and Computing. Conference Proceedings., IEEE
Conference_Location :
Winnipeg, Man.
Print_ISBN :
0-7803-4147-3
DOI :
10.1109/WESCAN.1997.627154
