Title :
An integrated mobile satellite broadcast, paging, communications and navigation system
Author_Institution :
Radio Satellite Corp., Long Beach, CA, USA
fDate :
12/1/1990 12:00:00 AM
Abstract :
The design of an integrated mobile satellite broadcast, paging, communications, and navigation system is described. Ku-band RadioSat ground stations will broadcast digital audio signals and data packets (including alphanumeric pages and group cells) to mobiles through a satellite to be launched in 1993. Each mobile radio will simultaneously receive L-band digital audio and data broadcasts from the satellite and L-band navigation broadcasts from the Global Positioning Systems (GPS) through a common omnidirectional mobile antenna and receiver front end. RadioSat mobile radios will use GPS broadcasts and differential corrections sent through the satellite to navigate with 2-m accuracy. With optional transmitters, RadioSat mobile radios can support two-way voice and data communications
Keywords :
audio signals; broadcasting; data communication systems; digital communication systems; mobile radio systems; packet switching; radionavigation; satellite relay systems; voice communication; GPS; Global Positioning Systems; Ku-band; L-band; RadioSat ground stations; alphanumeric pages; communications system; data communications; data packets; differential corrections; digital audio signals; group cells; integrated system; mobile radio; mobile satellite broadcast system; navigation system; omnidirectional mobile antenna; paging system; receiver front end; transmitters; two way voice communication; Digital audio broadcasting; Global Positioning System; Land mobile radio; Mobile communication; Radio broadcasting; Radio navigation; Satellite broadcasting; Satellite ground stations; Satellite navigation systems; Signal design;
Journal_Title :
Broadcasting, IEEE Transactions on
