Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
METHOD FOR MEASURING UNCERTAINTY OF GNSS-BASED POSITION ESTIMATION
Document Type and Number:
WIPO Patent Application WO/2018/151404
Kind Code:
A1
Abstract:
The present invention relates to a method for measuring the uncertainty of a GNSS-based position estimation, the method comprising the steps of: (A) measuring a sensor factor uncertainty value of a sensor factor uncertainty group under conditions where no environment factor uncertainty group and no model factor uncertainty group are generated; (B) measuring a model factor uncertainty value of the model factor uncertainty group under conditions where the environment factor uncertainty group is not generated while applying the sensor factor uncertainty value thereto; (C) measuring an environment factor uncertainty value of the environment factor uncertainty group while applying the sensor factor uncertainty value and the model factor uncertainty value thereto; and (D) measuring an uncertainty value of the GNSS-based position estimation on the basis of the sensor factor uncertainty value, the model factor uncertainty value, and the environment factor uncertainty value, wherein the sensor factor uncertainty group, the environment factor uncertainty group, and the model factor uncertainty group are obtained by grouping a plurality of uncertainty factors causing uncertainty of the GNSS-based position estimation according to causes that generate uncertainty. Accordingly, uncertainty generated during GNSS sensor-based position measurement, which is used for a self-driving vehicle that employs a GNSS sensor or for self-driving of an outdoor moving robot, for example, can be accurately measured and reflected for accurate position estimation of the self-driving vehicle.

More Like This:
WO/2020/253921METHOD FOR ERROR EVALUATION IN POSITION DETERMINATION
JP4880397Positioning using carrier phase measurements of satellite signals
WO1999057575METHOD AND SYSTEM FOR USING ALTITUDE INFORMATION IN A SATELLITE POSITIONING SYSTEM
Inventors:
CHUNG WOO-JIN (KR)
LEE WOO-SIK (KR)
Application Number:
PCT/KR2017/014982
Publication Date:
August 23, 2018
Filing Date:
December 19, 2017
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
UNIV KOREA RES & BUS FOUND (KR)
International Classes:
G01S19/20; G01S19/42; G05D1/00; G05D1/02
Foreign References:
US9467803B22016-10-11
KR20170013257A2017-02-06
KR20160003111A2016-01-08
US8525727B22013-09-03
US9223004B22015-12-29
Attorney, Agent or Firm:
NAMCHON INTERNATIONAL PATENT AND LAW FIRM (KR)
Download PDF:
View/Download PDF      PDF Help



 
Previous Patent: SYSTEM FOR MEASURING NOISE, VIBRATION, AND RUNNING SPEED OF ELEVATOR AND ESCALATOR

Next Patent: CHIP PACKAGE