Bibliographic data

Document US000008159384B2 (Pages: 14)

Bibliographic data Document US000008159384B2 (Pages: 14)
INID Criterion Field Contents
54 Title TI [EN] Method for examining an ice region or dry region using radar echo sounding
71/73 Applicant/owner PA DEUTSCH ZENTR LUFT & RAUMFAHRT, DE ; SCHEIBER ROLF, DE
72 Inventor IN SCHEIBER ROLF, DE
22/96 Application date AD Mar 14, 2008
21 Application number AN 53293508
Country of application AC US
Publication date PUB Apr 17, 2012
33
31
32		 Priority data PRC
PRN
PRD		 DE
102007015561
Mar 29, 2007
33
31
32		 PRC
PRN
PRD		 EP
2008002052
Mar 14, 2008
51 IPC main class ICM G01S 13/90 (2006.01)
51 IPC secondary class ICS G01S 13/89 (2006.01)
G01S 7/40 (2006.01)
IPC additional class ICA G01S 13/00 (2006.01)
G01S 7/00 (2006.01)
IPC index class ICI
Cooperative patent classification CPC G01S 13/882
G01S 13/904
G01S 13/9047
G01S 7/2813
H01Q 3/2611
MCD main class MCM G01S 13/90 (2006.01)
MCD secondary class MCS G01S 13/89 (2006.01)
G01S 13/935 (2020.01)
G01S 7/40 (2006.01)
MCD additional class MCA G01S 13/00 (2006.01)
G01S 7/00 (2006.01)
57 Abstract AB [EN] To suppress cross-ambiguities in the examination of an ice region or dry region by means of aircraft- or aerospace-supported radar echo sounding, the region to be examined is overflown by a radar sensor (6) by multiple compatible radar sensors of the same operating wavelength on multiple spatially separated, substantially parallel paths, wherein the radar signal data received on each path are recorded. The radar signal data recorded for each of the different paths are summed coherently and using a weighting to form a radargram, wherein an adaptive complex-valued weighting for each of the individual paths is performed using a geometrical model which takes into account the topography of the environment of the region to be examined. The weighting for every depth of the examined region is determined by solving a system of linear equations from which is calculated a synthetic antenna pattern which has zeros in the direction of the ambiguities. Implementation in radar systems for echo sounding in ice and in dry regions on earth or other planets and extraterrestrial objects.
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56 Cited non-patent literature identified in the search CTNP
56 Cited non-patent literature indicated by the applicant CTNP Barbarossa, S., et al., "A Conceptual SAR/Altimeter Radar with Subsurface Capabilities for Space Missions", IEEE International Radar Conference; May 7, 1990; pp. 76-80. 1;
Picardi, G., et al.; "Coherent Cancellation of Surface Clutter for Radar Sounding", Geoscience and Remote Sensing Symposium, 1999; IGARSS '99 Proceedings; IEEE 1999 International Hamburg, Germany, Jun. 28-Jul. 2, 1999; Piscataway, NJ; vol. 5, Jun. 28, 1999; pp. 2678-2680. 1;
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Scheiber, Rolf, et al.; "Surface Clutter Suppression for Ice Sounding Radars by Coherent Combination of Repeat-Pass Data"; IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2007; Jun. 23-Jun. 28, 2007; pp. 3559-3562. 1;
Braaten D., et al., "Radar Measurements of Ice Sheet Thickness of Outlet Glaciers in Greenland", IGARSS 2002; IEEE 2002; International Geoscience and Remote Sensing Symposium, Toronto, Sweden, Jun. 24-28, 2002; International Geoscience and Remote Sensing Symposium, New York, NY; vol. 4, Jun. 24, 2002, pp. 2188-2189. 1
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Search file IPC ICP G01S 13/90
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G01S 7/00
G01S 7/40
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