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Title:
POSITION MEASUREMENT SYSTEM, POSITION MEASUREMENT DEVICE, AND RECEPTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/212636
Kind Code:
A1
Abstract:
Provided is a position measurement system in which reception devices are configured from hardware having a typical time resolution and that is capable of achieving high positioning accuracy without using a GPS common view synchronization method. In the present invention, a central processing device (101) calculates offset observation values on the basis of the differences between the clock counter values at PPS signal generation times that are included in first reception timing information from each of two reception devices (Ri, Rj) from among a plurality of reception devices. The central processing device (101) acquires smoothed offset values by smoothing the offset observation values. The central processing device (101) calculates the differences between the times at which the signals from a target arrived at the two reception devices (Ri, Rj) on the basis of the differences between the clock counter values at SSR signal reception times that are included in second reception timing information from each of the two reception devices (Ri, Rj) and the smoothed offset values, and calculates the three-dimensional position of the target on the basis of the arrival time differences and the reception device positions.

Inventors:
UCHIDA KYOSUKE (JP)
HATA KIYOYUKI (JP)
Application Number:
PCT/JP2016/067355
Publication Date:
December 14, 2017
Filing Date:
June 10, 2016
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
G01S5/06; G01S13/74; G01S13/91
Domestic Patent References:
WO2013121775A12013-08-22
Foreign References:
JP2013200282A2013-10-03
JP2013231636A2013-11-14
JP2011013189A2011-01-20
JP2012154841A2012-08-16
Other References:
EISUKE UEDA ET AL.: "6. Kukomen Kanshi-yo Multilateration ni Tsuite", ELECTRONIC NAVIGATION RESEARCH INSTITUTE KENKYU HAPPYOKAI KOEN GAIYO, 16 June 2011 (2011-06-16), Dai 11 Kai, pages 29 - 36
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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