Communications: directive radio wave systems and devices (e.g. – Directive – Including a satellite
Reexamination Certificate
2011-08-09
2011-08-09
Issing, Gregory C (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Directive
Including a satellite
Reexamination Certificate
active
07994971
ABSTRACT:
A system and method for determining the roll rate and roll angle of a spinning platform, using the measured phase differences between the GPS satellite signals received on two or more antennas. The measured phase differences and the navigation solution from a GPS receiver are processed in a Kalman filter to obtain the desired information. Data from non-GPS measurement sources is optionally provided to update the navigation solution. Although of wide applicability, the invention is uniquely suited to the measurement of roll rates and roll angles of fast spinning platforms with small baselines, in which the antennas are separated from each other by distances that are a fraction of the GPS signal wavelength.
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Cafarella John
Dimos George
Tseng Huan-Wan
Upadhyay Triveni
Velde Wallace Vander
Issing Gregory c
Kumar Kaplesh
Mayflower Communications Company, Inc.
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