Title:
SKY POLARIZATION SENSOR FOR ABSOLUTE ORIENTATION DETERMINATION
Document Type and Number:
WIPO Patent Application WO/2014/018461
Kind Code:
A3
Abstract:
A method for determining absolute orientation of a platform is disclosed. In one embodiment, a first sky polarization data set for a first time Ti is measured using a sky polarization sensor disposed on a platform. A second sky polarization data set is obtained at a second time Tj. A difference in orientation between the first sky polarization data set and the second sky polarization data set is determined using an orientation determiner. The difference in orientation is provided as at least one orientation parameter for the platform at time Tj. The at least one orientation parameter is used to provide a direction relative to a reference point on the platform.
Inventors:
FRANCE PETER GLEN (NZ)
Application Number:
PCT/US2013/051540
Publication Date:
March 20, 2014
Filing Date:
July 22, 2013
Export Citation:
Assignee:
TRIMBLE NAVIGATION LTD (US)
International Classes:
G01C17/34; G01C1/04; G01C15/00; G01C17/00; G01C21/02; G01J4/04; G01S5/00; G01S19/45
Domestic Patent References:
| WO2011036662A1 | 2011-03-31 |
Foreign References:
| US20110018990A1 | 2011-01-27 | |||
| CN101413799B | 2011-08-24 | |||
| US5903235A | 1999-05-11 | |||
| EP1990607A1 | 2008-11-12 |
Other References:
JINKUI CHU ET AL: "Research on a Novel Polarization Sensor for Navigation", INFORMATION ACQUISITION, 2007. ICIA '07. INTERNATIONAL CONFERENCE ON, IEEE, PI, 1 July 2007 (2007-07-01), pages 241 - 246, XP031130210, ISBN: 978-1-4244-1219-8
Attorney, Agent or Firm:
GALLENSON, Mavis S. et al. (Suite 2100Los Angeles, California, US)
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