Enhancing mobile multiple-access communication networks

Details Enhancing mobile multiple-access communication networks Enhancing mobile multiple-access communication networks

2004-04-28

2009-10-20

Phan, Dao L (Department: 3662)

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

Directive

Including a satellite

C342S357490, C701S213000

Reexamination Certificate

active

07605750

ABSTRACT:
A global positioning system receiver for use to determine accurate position during flight based on data received from GPS satellites, the receiver including a clock with high short term accuracy, to allow determination of position even when data is received from less than four satellites, wherein the receiver is able to: extrapolate a trajectory forward for a period of a few seconds, and calculate a predicted reachable set (PRS) related to the extrapolated trajectory; and while receiving data from four satellites or more, to calibrate the clock in synchrony with the GPS clock.

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