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. 14, 2018
Filed:
Oct. 12, 2015
Applicant:
Deere & Company, Moline, IL (US);
Inventors:
Wei Yu, Torrance, CA (US);
Richard G. Keegan, Palos Verdes Estates, CA (US);
Ronald R. Hatch, Wilmington, CA (US);
Assignee:
DEERE & COMPANY, Moline, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
G01S 19/29 (2010.01); G01S 19/36 (2010.01); G01S 19/30 (2010.01); G01S 19/37 (2010.01);
U.S. Cl.
CPC ...
G01S 19/29 (2013.01); G01S 19/36 (2013.01); G01S 19/30 (2013.01); G01S 19/37 (2013.01);
Abstract
A multi-band satellite navigation receiver for carrier and code tracking using a fixed point sigma rho filter with improved stability is described. The receiver simplifies and speeds up the data processing in the filter to adaptively accommodate common information from aggregate bands and obtain the accurate position of the receiver in real time. The filter may utilize a standard deviation function and a cross correlation function while determining adaptive scale factors to ensure that the filter is stable and reliable.