Title:
ローカルRTKシステムと、地域、広域、またはグローバル搬送波位相測位システムを組み合わせて利用する方法
Document Type and Number:
Japanese Patent JP5481507
Kind Code:
B2
Abstract:
The present invention includes a method for a combined use of a local RTK system and a regional, wide-area, or global differential carrier-phase positioning system (WADGPS) in which disadvantages associated with the RTK and the WADGPS navigation techniques when used separately are avoided. The method includes using a known position of a user receiver that has been stationary or using an RTK system to initialize the floating ambiguity values in the WADGPS system when the user receiver is moving. Thereafter, the refraction-corrected carrier-phase measurements obtained at the user GPS receiver are adjusted by including the corresponding initial floating ambiguity values and the floating ambiguity values are treated as well known (small variance) in subsequent processes to position the user receiver in the WADGPS system.
Inventors:
Sharp, Richard, Tee.
Nelson, Frederick, W.
Pickett, Terence, Dee.
Hatch, Ronald, Earl.
Yang, Yun Chun
Nelson, Frederick, W.
Pickett, Terence, Dee.
Hatch, Ronald, Earl.
Yang, Yun Chun
Application Number:
JP2012041724A
Publication Date:
April 23, 2014
Filing Date:
February 28, 2012
Export Citation:
Assignee:
Navcom Technology, Inc.
International Classes:
G01S19/43; G01S19/44; G01S19/48
Domestic Patent References:
| JP10253734A | ||||
| JP9171071A |
Foreign References:
| US6531981 |
Other References:
David Walsh,Real Time Ambiguity Resolution While on the Move,ION GPS 92,米国,1992年 9月18日,P473-481
Attorney, Agent or Firm:
Yoshiyuki Inaba
Toshifumi Onuki
Toshifumi Onuki
Previous Patent: 通信ネットワークにおける回線交換型サービスのための方法および装置
Next Patent: METHOD OF CONTROLLING NUMBER OF COMPRESSORS
Next Patent: METHOD OF CONTROLLING NUMBER OF COMPRESSORS