Title:
レーザーレーダ装置
Document Type and Number:
Japanese Patent JP4053542
Kind Code:
B2
Abstract:
A laser radar apparatus includes a mixer 12 for converting the frequency of an electric signal outputted from a photodetector 11 into a baseband frequency by using a modulating signal generated by an oscillator 2 . The laser radar apparatus carries out a coherent integral of the electric signal whose frequency has been converted by the mixer 12 , and measures the quality of scatterers which exist in the atmosphere from a result of the integral. As a result, even when the S/N ratio of the light signal received by a receiving optical unit 8 is low, the laser radar apparatus can detect the quality of the scatterers.
Inventors:
Shunpei Kameyama
Yoshihito Hirano
Kimio Asaka
Toshiyuki Ando
Atsushi Okamura
Toshio Wakayama
Hiroshi Sakamaki
Yoshihito Hirano
Kimio Asaka
Toshiyuki Ando
Atsushi Okamura
Toshio Wakayama
Hiroshi Sakamaki
Application Number:
JP2004564456A
Publication Date:
February 27, 2008
Filing Date:
December 27, 2002
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
G01P5/00; G01S17/32; G01S17/58; G01S7/481; G01S13/32
Domestic Patent References:
| JP1291141A | ||||
| JP9113217A | ||||
| JP9281238A | ||||
| JP2000266850A | ||||
| JP2000338244A | ||||
| JP2001133471A | ||||
| JP2001133544A | ||||
| JP2001159595A | ||||
| JP2001183444A |
Attorney, Agent or Firm:
Hideaki Tazawa
Konobu Kato
Hamada Hatsune
Konobu Kato
Hamada Hatsune