logo

For the Inventor, By the Inventor

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.:

US 11294073 B1

PDFFull Text
Date of Patent:
Apr. 05, 2022

Filed:

May. 04, 2018

Tightly combined gps/bds carrier differential positioning method

Applicant:

Southeast University, Jiangsu, CN;

Inventors:

Shuguo Pan, Jiangsu, CN;

Wang Gao, Jiangsu, CN;

Yanheng Wang, Jiangsu, CN;

Chengfa Gao, Jiangsu, CN;

Qing Wang, Jiangsu, CN;

Ruicheng Zhang, Jiangsu, CN;

Jian Zhang, Jiangsu, CN;

Guoliang Liu, Jiangsu, CN;

Assignee:

SOUTHEAST UNIVERSITY, Jiangsu, CN;

Attorney:

JCIPRNET

Primary Examiner:

Bo Fan

Int. Cl.
CPC ...
G01S 19/44 (2010.01); G01S 19/07 (2010.01); G01S 19/04 (2010.01); G01S 19/25 (2010.01); G01S 19/32 (2010.01); G01S 19/41 (2010.01);
U.S. Cl.
CPC ...
G01S 19/44 (2013.01); G01S 19/04 (2013.01); G01S 19/071 (2019.08); G01S 19/25 (2013.01); G01S 19/32 (2013.01); G01S 19/41 (2013.01);
Abstract

A tightly combined GPS/BDS carrier differential positioning method is provided. The method comprises: using a GPS as a reference system to construct a GPS intra-system double-difference ionosphere-free combination model and a GPS/BDS inter-system double-difference ionosphere-free combination model; selecting a BDS reference satellite to re-parameterize an ambiguity of a GPS/BDS inter-system double-difference ionosphere-free combination and perform parameter decorrelation, estimating an ionosphere-free combination carrier differential inter-system bias in real time, and performing reference conversion on the ionosphere-free carrier inter-system bias to realize a continuous estimability of the ionosphere-free carrier differential inter-system bias in necessary; and finally, using ambiguity-fixed base carrier observations to form the ionosphere-free combination and performing tightly combined positioning on the inter-system double-difference ionosphere-free combination based on the estimated ionosphere-free carrier difference inter-system bias.

Find Patent Forward Citations

Pan, Shuguo. (2022). Tightly combined gps/bds carrier differential positioning method (U.S. Patent No. 11294073). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11294073

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…