Title:
RECALIBRATING AN INERTIAL NAVIGATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2014/147544
Kind Code:
A1
Abstract:
A device may include a radio signal receiver, and an inertial navigation system. Additionally, the device may include a processor to determine that the inertial navigation system has been initiated, monitor a radio signal associated with a mobile network received at the radio signal receiver, and determine a channel impulse response (CIR) based on the radio signal. The device may also monitor a Doppler spread of the radio signal based on the CIR in a time domain until a zero Doppler spread is identified. The device may recalibrate the inertial navigation system based on the zero Doppler spread.
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Inventors:
KARLSSON PETER C (SE)
PERSSON MAGNUS (SE)
PERSSON MAGNUS (SE)
Application Number:
PCT/IB2014/059881
Publication Date:
September 25, 2014
Filing Date:
March 17, 2014
Export Citation:
Assignee:
SONY CORP (JP)
International Classes:
G01C21/16; G01C25/00; G01S11/10
Foreign References:
| US20120086606A1 | 2012-04-12 |
Other References:
MICHAEL B MATHEWS ET AL: "SCP Enabled Navigation Using Signals of Opportunity in GPS Obstructed Environments", NAVIGATION, INSTITUTE OF NAVIGATION, FAIRFAX, VA, US, vol. 58, no. 2, 1 September 2011 (2011-09-01), pages 91 - 110, XP056000169, ISSN: 0028-1522
Attorney, Agent or Firm:
KAMEYA, Yoshiaki (Daiichi Tomizawa Building 3-1-3, Yotsuy, Shinjuku-ku Tokyo 04, JP)
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