Title:
LASER RADAR DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/186914
Kind Code:
A1
Abstract:
In the present invention, a light transmission unit (3) transmits an optical signal having a light intensity set as a low level component of a pulse. A partial light reflector (6) is provided on a path through which transmission light is transmitted from a circulator (5) to the atmosphere, and reflects the optical signal. A detection unit (11) carries out coherent detection of reception light using the signal of the low level interval of the optical signal reflected by the partial light reflector (6) as local light.
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Inventors:
KAMEYAMA SHUMPEI (JP)
HARAGUCHI EISUKE (JP)
KAJIYAMA YUTAKA (JP)
KOTAKE NOBUKI (JP)
YANAGISAWA TAKAYUKI (JP)
ANDO TOSHIYUKI (JP)
HARAGUCHI EISUKE (JP)
KAJIYAMA YUTAKA (JP)
KOTAKE NOBUKI (JP)
YANAGISAWA TAKAYUKI (JP)
ANDO TOSHIYUKI (JP)
Application Number:
PCT/JP2018/013302
Publication Date:
October 03, 2019
Filing Date:
March 29, 2018
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
G01S7/481; G01S17/95
Domestic Patent References:
| WO2017187510A1 | 2017-11-02 |
Foreign References:
| JPS57211507A | 1982-12-25 | |||
| JPS6238380A | 1987-02-19 | |||
| JP2006322916A | 2006-11-30 | |||
| JPH10186027A | 1998-07-14 |
Other References:
T. ANDO ET AL.: "All-fiber coherent Doppler technologies at Mitsubishi Electric Corporation", IOP CONFERENCE SERIES: EARTH AND ENVIRONMENTAL SCIENCE, vol. 1, 2008
See also references of EP 3754364A4
See also references of EP 3754364A4
Attorney, Agent or Firm:
TAZAWA, Hideaki et al. (JP)
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