The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 31, 2017
Filed:
Apr. 15, 2014
Honeywell International Inc., Morristown, NJ (US);
Douglas Weed, Forest Lake, MN (US);
Randy J. Reuter, Brooklyn Park, MN (US);
Honeywell International Inc., Morris Plains, NJ (US);
Abstract
A processing function to monitor a horizontal delay gradient in satellite signals is provided. The processing function includes a satellite differencing module, a double differencing module, a parity test module, and a gradient estimator module. The satellite differencing module receives carrier phase measurements for at least two satellites from at least three reference receivers. The satellite differencing module determines differences in the carrier phase measurements between signals from the monitored satellite and at least one of the at least one other satellite. The double differencing module: forms double-differences between pairs of the reference receivers; compensates the double-differences between the pairs; performs a modulo operation; and averages the double differences. The parity test module inputs the averaged compensated double differences when the average exceeds a parity enable threshold. The gradient estimator module configured is to estimate a magnitude of the horizontal delay gradient.