or
Bookmark and Share
Method and apparatus for detecting wind velocities by means of a doppler-lidar system
   
Document Number
US Patent 7463341
Issued Date
December 9, 2008
Link
Map
Abstract
In the case of a method of detecting wind velocities by means of a Doppler-lidar system (10), a laser beam of a defined frequency generated by means of a laser (11) is emitted by a transmitting device (12) toward a space area and the light backscattered from the space area is received by means of a receiving telescope (13). For determining a Doppler shift, an interferogram is generated by means of an interferometer (16), the intensity distribution of the interferogram being directly measured by means of a photodetector (17). The measured intensity distribution is compared with one or more reference patterns which had previously been determined for defined parameters and are filed in a memory device (18a). From the comparison, the Doppler shift is determined as a measurement for the wind velocity. The Doppler-lidar system (10) comprises an analyzing unit (18a, 18b) for implementing the method, having a comparison unit (18b) for the comparison of reference patterns with the measured interferogram.
Tags:
Description:
Amusing 0%
Clever 0%
Complex 0%
Efficient 0%
Historic 0%
Important 0%
Innovative 0%
Interesting 0%
Practical 0%
Simple 0%
Number of Claims:
20
Comments:
no comments yet
Owner
EADS Deutschland GmbH (Ottobrunn,DE)
Published
December 9, 2008
Application Number
10/552,067
Filed
April 3, 2004
US Classification
356/28.5  
Int'l Classification
G01P   3/36   (20060101)  
Examiner
Assistant Examiner
Attorney/Law Firm
Priority Data
Apr 10, 2003 [DE] 103 16 762.5
USPTO Field of Search
356/28.5   356/3.01   356/2   356/3.15   356/4.01   356/2   356/3.1   356/5.01   356/5.15   356/01   356/2   356/3   356/28  
Related Patents
Claims
Description
About| FAQs| Terms & Disclaimer| Link to Us| Contact Us