| 54 |
Title |
TI |
[EN] Method and apparatus for computer-assisted processing of SAR raw data |
| 71/73 |
Applicant/owner |
PA |
DEUTSCHES ZENTRUM FÜR LUFT-UND RAUMFAHRT EV, DE
|
| 72 |
Inventor |
IN |
KRIEGER GERHARD, DE
;
MOREIRA ALBERTO, DE
;
VILLANO MICHELANGELO, DE
|
| 22/96 |
Application date |
AD |
Mar 26, 2018 |
| 21 |
Application number |
AN |
201815936041 |
|
Country of application |
AC |
US |
|
Publication date |
PUB |
Aug 25, 2020 |
33
31
32 |
Priority data |
PRC
PRN
PRD |
DE
102017205649
20170403
|
| 51 |
IPC main class |
ICM |
G01S 13/90
(2006.01)
|
| 51 |
IPC secondary class |
ICS |
G01S 7/28
(2006.01)
G01S 7/295
(2006.01)
|
|
IPC additional class |
ICA |
|
|
IPC index class |
ICI |
|
|
Cooperative patent classification |
CPC |
G01S 13/90
G01S 13/9011
G01S 7/2813
G01S 7/295
|
|
MCD main class |
MCM |
G01S 13/90
(2006.01)
|
|
MCD secondary class |
MCS |
G01S 7/28
(2006.01)
G01S 7/295
(2006.01)
|
|
MCD additional class |
MCA |
|
| 57 |
Abstract |
AB |
[EN] The present disclosure relates to a method for computer-implemented processing of SAR raw data, which comprises radar echoes from radar pulse. An interference radar echo and an interference pulse are associated with a respective radar pulse, wherein the interference pulse and the respective radar pulse have orthogonal waveforms. SAR raw data are focused by a first focusing on the interference pulses including a range compression and an azimuth compression, to obtain first focused data, where a filtering is used for the range compression of a respective radar pulse, which filtering is matched to the waveform of the associated interference pulse. Thereafter, the first focused data undergo a signal suppression, which at least partially suppresses the interference radar echo, as a result of which second focused data are obtained. These second focused data finally undergo a defocusing including range decompression and azimuth decompression to obtain modified SAR raw data. |
| 56 |
Cited documents identified in the search |
CT |
US020090267825A1
US020120206292A1
US020140009326A1
US020180045825A1
|
| 56 |
Cited documents indicated by the applicant |
CT |
WO001997042520A1
|
| 56 |
Cited non-patent literature identified in the search |
CTNP |
|
| 56 |
Cited non-patent literature indicated by the applicant |
CTNP |
Kim, Jung-Hyo et al., “Spaceborne MIMO Synthetic Aperture Radar for Multimodal Operation”, IEEE Transactions on Geoscience and Remote Sensing, IEEE Service Center, Piscataway, NJ, US, vol. 53, No. 5, May 1, 2015 (May 1, 2015), pp. 2453-2466. 1;
Riché, Vishal et al., “Optimization of OFDM SAR signals for Range ambiguity suppression”, 9th European Radar Conference (EURAD), 2012, IEEE, Oct. 31, 2012 (Oct. 31, 2012), pp. 278-281. 1;
Sandia Report SAND2006-5332—SAR AmbiguousRange Suppression. Unlimited release. Albuquerque, New Mexiko [u.a.]: Sandia National Laboratories, Sep. 2006. 16 S. 1;
Suppression ofRange Ambiguities in Synthetic ApertureRadar Systems. In: The IEEE Region 8 EUROCON 2003: Computer as a Tool, Sep. 22-24, 2003, Ljubljana, Slovenia, S. 417-421. 1
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Citing documents |
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Determine documents
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Sequence listings |
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Search file IPC |
ICP |
G01S 13/90
G01S 7/28
G01S 7/292
G01S 7/295
|
