| 54 |
Title |
TI |
[EN] Synthetic aperture radar method and synthetic aperture radar device |
| 71/73 |
Applicant/owner |
PA |
DEUTSCH ZENTR LUFT & RAUMFAHRT, DE
;
DEUTSCHES ZENTRUM FUER LUFT—UND RAUMFAHRT E V, DE
|
| 72 |
Inventor |
IN |
HUBER SIGURD, DE
;
KLENK PATRICK, DE
;
KRIEGER GERHARD, DE
;
MOREIRA ALBERTO, DE
;
QUEIROZ DE ALMEIDA FELIPE, DE
;
REIMANN JENS, DE
;
VILLANO MICHELANGELO, DE
;
YOUNIS MARWAN, DE
|
| 22/96 |
Application date |
AD |
Apr 25, 2019 |
| 21 |
Application number |
AN |
201917058522 |
|
Country of application |
AC |
US |
|
Publication date |
PUB |
Sep 27, 2022 |
33
31
32 |
Priority data |
PRC
PRN
PRD |
DE
102018208366
May 28, 2018
|
33
31
32 |
PRC
PRN
PRD |
EP
2019060608
Apr 25, 2019
|
| 51 |
IPC main class |
ICM |
G01S 7/40
(2006.01)
|
| 51 |
IPC secondary class |
ICS |
G01S 13/90
(2006.01)
|
|
IPC additional class |
ICA |
|
|
IPC index class |
ICI |
|
|
Cooperative patent classification |
CPC |
G01S 13/9056
G01S 7/4026
G01S 7/4034
|
|
MCD main class |
MCM |
G01S 7/40
(2006.01)
|
|
MCD secondary class |
MCS |
G01S 13/90
(2006.01)
|
|
MCD additional class |
MCA |
|
| 57 |
Abstract |
AB |
[EN] A synthetic aperture radar method for remote sensing of the surface of the Earth by means of a radar device on a flying object moving in an azimuth direction above the surface of the Earth, wherein the radar device includes an array of antenna elements for transmitting radar pulses in a transmitting operation and for receiving radar echoes of these radar pulses reflected at the surface of the Earth in a receiving operation. A calibration mode is carried out in whichthe transmission of the radar pulses in the transmitting operation is carried out with a pulse repetition rate such that only echo signals of a single radar echo are received by all antenna elements of the array at the same point in time in the receiving operation;in the receiving operation, the echo signals are recorded in a plurality of receiving channels, wherein a different antenna element is assigned to a respective receiving channel, and in the respective receiving channel the echo signals received by the assigned antenna element are digitized and directly stored, thereby obtaining digitized radar data;the digitized radar data are further processed to determine a set of calibrated parameters of the radar device for the SAR operating mode for obtaining SAR images. |
| 56 |
Cited documents identified in the search |
CT |
US020090109086A1
|
| 56 |
Cited documents indicated by the applicant |
CT |
|
| 56 |
Cited non-patent literature identified in the search |
CTNP |
|
| 56 |
Cited non-patent literature indicated by the applicant |
CTNP |
Bordoni, F. et al., “Calibration Error Model for Multichannel Spaceborne SAR Systems Based on Digital Beamforming” Proceedings of the 10th European Radar Conference (Oct. 2013) pp. 184-187. 1;
International Search Report issued in corresponding PCT Application No. PCT/EP2019/060608, dated Jul. 4, 2019, pp. 1-2. 1;
Krieger, G. et al., “Advanced synthetic aperture radar based on digital beamfomning and waveform diversity” Radar Conference, Radar '08. IEEE (May 2008) pp. 1-6. 1;
Krieger, G. et al., “CEBRAS: Cross elevation beam range ambiguity suppression for high-resolution wide-swath and MIMO-SAR imaging” 2015 IEEE International Geoscience and Remote Sensing Symposium (IGARSS) (Jul. 2015) pp. 196-199. 1;
Queiroz De Almeida, F. et al., “Multichannel staggered SAR with reflector antennas: Discussion and proof of concept” 18th International Radar Symposium (IRS) (Jun. 2017) pp. 1-10. 1;
Villano, M. et al., “Staggered SAR: Performance Analysis and Experiments With Real Data ” IEEE Transactions on Geoscience and Remote Sensing (Nov. 2017) pp. 6617-6638, vol. 55, No. 11. 1
|
|
Citing documents |
|
Determine documents
|
|
Sequence listings |
|
|
|
Search file IPC |
ICP |
G01S 13/90
G01S 7/40
|
