US 12,169,243 B2
High precision independent positioning apparatus for reference station
Nobuhiro Kishimoto, Hyogo (JP)
Assigned to Magellan Systems Japan, Inc., Amagasaki (JP)
Filed by Magellan Systems Japan, Inc., Hyogo (JP)
Filed on Jun. 22, 2021, as Appl. No. 17/354,720.
Application 17/354,720 is a continuation of application No. PCT/IB2020/054235, filed on May 5, 2020.
Claims priority of provisional application 62/854,822, filed on May 30, 2019.
Prior Publication US 2021/0318446 A1, Oct. 14, 2021
Int. Cl. G01S 19/07 (2010.01); G01S 19/41 (2010.01); G01S 19/03 (2010.01); G01S 19/05 (2010.01); G01S 19/43 (2010.01)
CPC G01S 19/07 (2013.01) [G01S 19/41 (2013.01); G01S 19/03 (2013.01); G01S 19/05 (2013.01); G01S 19/43 (2013.01)] 25 Claims
OG exemplary drawing
 
14. A method for providing independent precise positioning for a reference station having a GNSS antenna and a GNSS receiver, the method comprising:
receiving a plurality of GNSS signals from a plurality of GNSS satellites via the GNSS antenna, the plurality of GNSS signals including GNSS signals having augmentation information;
obtaining GNSS data generated by the GNSS receiver based on the received GNSS signals, the GNSS data including GNSS observation data and GNSS augmentation data obtained from the augmentation information in the received GNSS signals;
performing positioning based on the GNSS data to calculate a current position of the reference station without using position information of another reference station, error information sent via a communication link other than GNSS satellite communication link, or a surveyed position of the reference station,
generating error correction information in a predetermined data format based on results of the positioning without using or referring to the surveyed position of the reference station, the error correction information including the current position of the reference station as a precise position of the reference station; and
transmitting the error correction information via a communication link.