Title :
Mobile satellite broadcast system design
Author_Institution :
Radio Satellite Corp., Washington, DC, USA
Abstract :
An innovative mobile satellite network that will broadcast data and audio signals (voice and music) to mobiles throughout the contiguous United States through MSAT, a North American mobile satellite system now under construction, is described. Mobiles with suitably equipped radios and small L-band omnidirectional mobile satellite antennas simultaneously receive one data channel and any one of many audio channels. Pages, travel advisories, and navigation data are sent through the data channel. An optional global positioning system (GPS) microprocessor uses a common mobile antenna and receiver front end and GPS differential corrections and integrity data sent through the network data broadcast channel to provide precise vehicle navigation. Optional mobile transmitters permit two-way data communications
Keywords :
audio signals; broadcasting; data communication systems; mobile radio systems; radionavigation; satellite relay systems; voice communication; GPS; L-band omnidirectional antennas; MSAT; North America; USA; audio channels; audio signals; data channel; data signals; global positioning system; microprocessor; mobile satellite antennas; mobile satellite network; mobile satellite system; mobile transmitters; music; navigation data; radios; receiver front end; satellite broadcast system; system design; travel advisories; two-way data communications; vehicle navigation; voice signals; Global Positioning System; Microprocessors; Mobile antennas; Multiple signal classification; Radio navigation; Receiving antennas; Satellite antennas; Satellite broadcasting; Satellite navigation systems; Vehicles;
Conference_Titel :
Vehicular Technology Conference, 1990 IEEE 40th
Conference_Location :
Orlando, FL
DOI :
10.1109/VETEC.1990.110326
