US 11,789,162 B2
Positioning apparatus and augmentation information generation apparatus
Norizumi Motooka, Tokyo (JP); Yuki Sato, Tokyo (JP); Takamasa Kawaguchi, Tokyo (JP); Yuichi Hagito, Tokyo (JP); and Masayasu Fujita, Tokyo (JP)
Assigned to MITSUBISHI ELECTRIC CORPORATION, Tokyo (JP)
Appl. No. 17/770,637
Filed by Mitsubishi Electric Corporation, Tokyo (JP)
PCT Filed Oct. 16, 2020, PCT No. PCT/JP2020/039186
§ 371(c)(1), (2) Date Apr. 21, 2022,
PCT Pub. No. WO2021/117342, PCT Pub. Date Jun. 17, 2021.
Claims priority of application No. 2019-224845 (JP), filed on Dec. 12, 2019.
Prior Publication US 2022/0381924 A1, Dec. 1, 2022
Int. Cl. G01S 19/32 (2010.01); G01S 19/39 (2010.01); G01S 19/11 (2010.01); G01C 21/28 (2006.01)
CPC G01S 19/396 (2019.08) [G01S 19/11 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A positioning apparatus to process a first ranging signal having a first frequency and a second ranging signal having a second frequency which are transmitted from a plurality of positioning satellites, the positioning apparatus comprising:
processing circuitry to:
convert first augmentation information for correcting first calculation information for position calculation contained in the first ranging signal to second augmentation information for correcting second calculation information for position calculation contained in the second ranging signal; and
correct the second calculation information using the second augmentation information;
wherein
the first calculation information is a carrier phase contained in the first ranging signal,
the second calculation information is a carrier phase contained in the second ranging signal,
the first augmentation information is a signal bias for correcting the carrier phase contained in the first ranging signal,
the second augmentation information is a signal bias for correcting the carrier phase contained in the second ranging signal, and
the processing circuitry converts the first augmentation information to the second augmentation information based on an expression of linear combination of the signal bias as the first augmentation information for the carrier phase contained in the first ranging signal and a signal bias related to a pseudorange, the signal bias related to the pseudorange being information for correcting the pseudorange contained in the first ranging signal.