Title:
AUXILIARY NAVIGATION AND POSITIONING METHOD AND SYSTEM
Document Type and Number:
WIPO Patent Application WO/2018/149076
Kind Code:
A1
Abstract:
An auxiliary navigation and positioning method and system. The auxiliary navigation and positioning method comprises: a receiver receiving a current GNSS signal, and when the power of the current GNSS signal is lower than a pre-set power and a carrier-to-noise ratio of the current GNSS signal is smaller than a pre-set carrier-to-noise ratio, acquiring GNSS auxiliary information (110) sent by a GNSS auxiliary reference station (100) via a CD Radio channel (300) (S1); and according to the GNSS auxiliary information (110), completing the capturing and tracking of the current GNSS signal and calculating a pseudo-range difference value so as to determine a position vector of the receiver, and determining position information about the receiver according to the position vector so as to realise auxiliary navigation and positioning. Auxiliary navigation and positioning is realised by means of GNSS auxiliary information (110) sent via the CD Radio channel (300), the problem of instability in transporting GNSS signal auxiliary information by means of mobile Internet is solved, and the actual application range and user experience of a high-sensitivity GNSS receiver are significantly improved.
Inventors:
DING YUAN (CN)
ZHANG GUANGHUA (CN)
XIAO PENG (CN)
ZHANG GUANGHUA (CN)
XIAO PENG (CN)
Application Number:
PCT/CN2017/089623
Publication Date:
August 23, 2018
Filing Date:
June 22, 2017
Export Citation:
Assignee:
SHENZHEN SKYCASTER MICRONICS INC (CN)
International Classes:
G01S19/42
Domestic Patent References:
| WO1996022546A1 | 1996-07-25 |
Foreign References:
| CN101206258A | 2008-06-25 | |||
| CN103364758A | 2013-10-23 | |||
| CN101206254A | 2008-06-25 | |||
| CN103983995A | 2014-08-13 | |||
| US20100231443A1 | 2010-09-16 |
Attorney, Agent or Firm:
CENFO INTELLECTUAL PROPERTY AGENCY (CN)
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