Title :
Carrier synchronization under Doppler shift of the nongeostationary satellite communication systems
Author :
Katayama, Masaki ; Ogawa, Akira ; Morinaga, Norihiko
Author_Institution :
Dept. of Inf. Electron., Nagoya Univ., Japan
Abstract :
The satellite communication systems with low-altitude nongeostationary orbits have many valuable features; however, the signals suffer the effects of Doppler shift whose value and drift rate are very large compared with those in the systems with geostationary or highly elliptical orbits. The paper discusses the effects of this Doppler shift in the low-altitude orbital satellite communication systems from the viewpoint of carrier recovery at the receivers.
Keywords :
Doppler effect; radiowave propagation; satellite relay systems; synchronisation; Doppler shift; carrier recovery; carrier synchronisation; drift rate; low altitude orbits; nongeostationary satellite communication systems; receivers; Added delay; Doppler shift; Earth; Frequency division multiaccess; Orbits; Phase locked loops; Propagation delay; Propagation losses; Real time systems; Satellite communication;
Conference_Titel :
Singapore ICCS/ISITA '92. 'Communications on the Move'
Conference_Location :
Singapore
Print_ISBN :
0-7803-0803-4
DOI :
10.1109/ICCS.1992.254907
