Combined navigation and mobile communication satellite architecture
First Claim
1. A navigation and mobile communication satellite system (10) comprising:
- a Geo-Mobile (GEM) satellite (14) in operative communication with at least one ground segment (12) and at least one user segment (16), the GEM satellite (14) including a GEM processor (100) for providing communication and navigation services to said user segments (16);
a plurality of Global Position System (GPS) satellites (50) in operative communication with at least one of said user segments (16) and at least one of said ground segments (12), said GPS satellites (50) providing wide band, high data rate navigation signals containing navigation data to said user segment (16) and said ground segment (12);
wherein each of said ground segments (12) include a gateway station (28) for receiving and formatting said wide band, high data rate navigation signals into a GEM processor format and uplinking said navigation data to said GEM satellite (14) such that said navigation processed signals are rebroadcast from said GEM satellite (14) to said user segment (16) at a higher power than from said GPS satellites (50).
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Accused Products
Abstract
A navigation and mobile communication satellite system including a Geo-Mobile (GEM) satellite (14) and a plurality of Global Position System (GPS) satellites (50). The GEM satellite (14) is in operative communication with at least one ground segment (12) and at least one user segment (16), and includes a GEM processor for providing communication services to the user segments (16). The GPS network is also in operative communication with at least one of the user segments (16) and at least one of the ground segments (12). The GPS network provides navigation data to the user segment (16). Each of the ground segments (12) include a gateway station (28) for receiving the navigation data and uplinking the navigation data to the GEM satellite (14) such that the navigation data is rebroadcast to the user segments (16) at a higher power than from the GPS network alone. In this manner, the GEM system provides a navigation signal at a much higher power than the present GPS system. This signal is of sufficient strength to overcome the effects of a lower power signal jammer, which may be effective against the weaker GPS signal.
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Citations
18 Claims
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1. A navigation and mobile communication satellite system (10) comprising:
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a Geo-Mobile (GEM) satellite (14) in operative communication with at least one ground segment (12) and at least one user segment (16), the GEM satellite (14) including a GEM processor (100) for providing communication and navigation services to said user segments (16);
a plurality of Global Position System (GPS) satellites (50) in operative communication with at least one of said user segments (16) and at least one of said ground segments (12), said GPS satellites (50) providing wide band, high data rate navigation signals containing navigation data to said user segment (16) and said ground segment (12);
wherein each of said ground segments (12) include a gateway station (28) for receiving and formatting said wide band, high data rate navigation signals into a GEM processor format and uplinking said navigation data to said GEM satellite (14) such that said navigation processed signals are rebroadcast from said GEM satellite (14) to said user segment (16) at a higher power than from said GPS satellites (50). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A gateway station (28) for a Geo-Mobile (GEM) satellite system (10) comprising:
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a receiver (110) in operative communication with said GEM satellite (14) and a network of global positioning system (GPS) satellites (50), said GEM satellite (14) providing communication services to a plurality of user terminals (16) and said GPS network (50) providing navigation data to said plurality of user terminals (16);
a preprocessor (102) for formatting wide-band, high data-rate navigation signals received from said GPS network (50) by said receiver (110) into GEM processor format; and
a transmitter in operative communication with said GEM satellite (14) for transmitting said processed navigation signals from said preprocessor (102) to said GEM satellite (14) such that said navigation processed signals are rebroadcast to said user terminals (16) at a higher power than from said GPS satellites (50). - View Dependent Claims (12, 13, 14, 15)
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16. In a Geo-Mobile (GEM) satellite network (10) including a GEM satellite (14) in operative communication with at least one ground segment (12) and at least one user segment (16), an improved Global Position System (GPS) satellite network (50) comprising:
a gateway station (28) in operative communication with said GEM satellite (14) and said GPS satellite network (50), said gateway station (28) providing uplink transmission of processed navigation signals, that are in GEM processor format, from said GPS satellite network (50) to said GEM satellite (14) such that said navigation processed signals are rebroadcast to said user terminals (16) at a higher power than from GPS satellites (50). - View Dependent Claims (17, 18)
Specification