Title:
METHOD FOR MEASURING THE WATER LEVEL OF A BODY OF WATER
Document Type and Number:
WIPO Patent Application WO/2011/092056
Kind Code:
A3
Abstract:
The invention relates to a method for measuring the water level of a body of water. For this purpose, a reflector (1, 101, 201, 301, 401, 501) is used, which comprises a number of reflection surfaces (1a, 1b) for reflecting electromagnetic radiation in a predetermined wavelength region and which is provided in or at the body of water such that a corner reflector is formed by the water surface (W) of the body of water and one or more reflection surfaces (1a, 1b) of the reflector (1, 101, 201, 301, 401, 501). Within the scope of the method, electromagnetic radiation in the predetermined wavelength region that is emitted by a radiation device (3) located above the body of water shines on the reflector (1, 101, 201, 301, 401, 501) such that the incident radiation is reflected on the corner reflector on the basis of multiple reflections, taking into consideration the water surface (W). The distance between the radiation device (2) and reflection center of the corner reflector is measured over a propagation time of the emitted and reflected radiation, and the water level (W) of the body of water is determined on the basis thereof.
Inventors:
EINEDER MICHAEL (DE)
Application Number:
PCT/EP2011/050372
Publication Date:
October 13, 2011
Filing Date:
January 13, 2011
Export Citation:
Assignee:
DLR EV (DE)
EINEDER MICHAEL (DE)
EINEDER MICHAEL (DE)
International Classes:
G01F23/00; G01S13/00; H01Q15/00
Foreign References:
| US4184155A | 1980-01-15 | |||
| US4914734A | 1990-04-03 | |||
| DE2461945A1 | 1975-07-17 | |||
| US2823365A | 1958-02-11 | |||
| US3258737A | 1966-06-28 | |||
| DE102008029771A1 | 2009-12-31 |
Other References:
GONG LIXIA ET AL: "Detection of artificial corner reflector on SAR images", PROC. DRAGON 1 PROGRAMME FINAL RESULTS 2004-2007, 1 January 2008 (2008-01-01), XP055002661, Retrieved from the Internet [retrieved on 20110712]
See also references of EP 2531822A2
See also references of EP 2531822A2
Attorney, Agent or Firm:
NUMRICH, Harald et al. (München, DE)
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