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:
Aug. 04, 2015
Filed:
Oct. 22, 2014
Honeywell International Inc., Morristown, NJ (US);
Honeywell International Inc., Morristown, NJ (US);
Abstract
Systems and methods for satellite signal tracking are provided. In one embodiment, a GNSS tracking system comprises: a carrier demodulator that receives a navigation signal including pilot and data signal components; a correlator block that implements early, prompt and late correlators, generates prompt values from the pilot signal, and generates early and late values from the data signal; a carrier tracking loop that generates a reference signal using the prompt values, and outputs the reference signal to the carrier demodulator; a code tracking loop that outputs a pilot signal local replica to the prompt correlator and a data signal local replica to the early and late correlators, wherein a chip rate for the local replicas is adjusted by the code tracking loop as a function of the early and late values; and a symbol demodulator that extracts navigation data from the data signal component using the early and late values.