Title:
SPEED ESTIMATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/109951
Kind Code:
A1
Abstract:
The present invention is provided with: reception antennas (11a, 11b) that receive, via corresponding satellites (2a, 2b), a signal transmitted from a moving body (3) and a signal transmitted from a reference station (4); frequency measurement units (161a, 161b) that measure the frequency of the signal from the moving body (3) and the frequency of the signal from the reference station (4) received by the corresponding reception antennas (11a, 11b); Doppler frequency calculation units (162a, 162b) that calculate, from the frequencies measured by the corresponding frequency measurement units (161a, 161b), the Doppler frequencies of uplinks from the moving body (3) to the corresponding satellites (2a, 2b); and a speed calculation unit (163) that calculates the speed of the moving body (3) from the Doppler frequencies calculated by the Doppler frequency calculation units (162a, 162b).
Inventors:
AMISHIMA TAKESHI (JP)
SUZUKI NOBUHIRO (JP)
SUZUKI NOBUHIRO (JP)
Application Number:
PCT/JP2015/086280
Publication Date:
June 29, 2017
Filing Date:
December 25, 2015
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
G01S11/10
Foreign References:
| JP2009198435A | 2009-09-03 | |||
| JP2009531693A | 2009-09-03 | |||
| JP2010060303A | 2010-03-18 | |||
| JP2008064566A | 2008-03-21 | |||
| JP2000512380A | 2000-09-19 | |||
| JP2003507747A | 2003-02-25 | |||
| JP2004519945A | 2004-07-02 | |||
| JPS6465473A | 1989-03-10 | |||
| JP2013029419A | 2013-02-07 | |||
| JP2010256022A | 2010-11-11 | |||
| JP2008298605A | 2008-12-11 | |||
| JP2010540922A | 2010-12-24 | |||
| JP2006349470A | 2006-12-28 | |||
| US20090224957A1 | 2009-09-10 | |||
| CN102331581A | 2012-01-25 | |||
| CN102478652A | 2012-05-30 |
Other References:
D. P. HAWORTH ET AL.: "Interference Localization For EUTELSAT Satellites-The First European Transmitter Location System", INTERNATIONAL JOURNAL OF SATELLITE COMMUNICATIONS, vol. 15, no. 4, 1997, pages 155 - 183, XP055395828
TIM PATTISON ET AL.: "Sensitivity Analysis of Dual-Satellite Geolocation", IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS, vol. 36, no. 1, January 2000 (2000-01-01), pages 56 - 71, XP008122708
TIM PATTISON ET AL.: "Sensitivity Analysis of Dual-Satellite Geolocation", IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS, vol. 36, no. 1, January 2000 (2000-01-01), pages 56 - 71, XP008122708
Attorney, Agent or Firm:
TAZAWA, Hideaki et al. (JP)
Download PDF:
Previous Patent: BEND PIPE AND FLUID MACHINE COMPRISING SAME
Next Patent: HEAT-EXCHANGE VENTILATION DEVICE
Next Patent: HEAT-EXCHANGE VENTILATION DEVICE