Satellite communications facilitated by synchronized nodal regre

Details Satellite communications facilitated by synchronized nodal regre Satellite communications facilitated by synchronized nodal regre

1998-10-06

1999-12-07

Blum, Theodore M.

Communications: directive radio wave systems and devices (e.g.,

Directive

Including antenna orientation

34235716, 342354, 342352, 701226, H01Q 300

Patent

active

059991275

ABSTRACT:
A satellite communication method enables a low earth orbit data collecting mission satellite to conveniently achieve continuous, real time, and cost effective global connectivity by "plugging in" to a constellation of low earth orbit communication satellites designed to provide mobile satellite service for terrestrial users. Orbit parameters for the mission satellite are selected to generate a nodal regression rate matched to that of the communication satellites so that initial alignment of orbit planes is sustained maintaining a favorable geometry between the communicating satellites. The resulting intra-satellite geometry is exploited through use of widebeam crosslink antennas, simplified pointing techniques, and variable transmission rates for optimum communication efficiency from the mission satellites to communication satellites and ground receivers.

REFERENCES:
patent: 5119225 (1992-06-01), Grant et al.

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