Title:
SYSTEM AND METHOD FOR RADAR IMAGING FOR ANTENNAS WITH POSITION AMBIGUITIES
Document Type and Number:
WIPO Patent Application WO/2021/141000
Kind Code:
A1
Abstract:
A radar system for generating a radar image of a scene. Receive radar measurements of reflectivity of each point in the scene measured by receivers. Solve a radar image recovery (R1R) problem using stored data to produce the radar image. By connecting the radar measurements to a shift of a reflection field with a receiver shift. The receiver shift defines an error between stored receiver positions and actual receivers positions, the reflection field is generated by reflecting the transmitted field from the scene in accordance with the reflectivity of each point in the scene. Connecting the reflection field to a shift of an incident field with a transmitter shift. The transmitter shift defines an error between stored transmitter positions and actual transmitters positions. Solve as a multilinear problem of joint estimation of the reflectivity of each point in the scene, the receiver shift, and the transmitter shift.
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Inventors:
BOUFOUNOS PETROS (US)
MANSOUR HASSAN (US)
LODHI MUHAMMAD (US)
MANSOUR HASSAN (US)
LODHI MUHAMMAD (US)
Application Number:
PCT/JP2020/049308
Publication Date:
July 15, 2021
Filing Date:
December 22, 2020
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
G01S7/40; G01S13/00; G01S13/89
Foreign References:
| US20190242991A1 | 2019-08-08 | |||
| US20180059237A1 | 2018-03-01 | |||
| US16295102A | 2002-06-04 |
Other References:
MANSOUR HASSAN ET AL: "Sparse Blind Deconvolution for Distributed Radar Autofocus Imaging", IEEE TRANSACTIONS ON COMPUTATIONAL IMAGING, IEEE, vol. 4, no. 4, 1 December 2018 (2018-12-01), pages 537 - 551, XP011705006, ISSN: 2573-0436, [retrieved on 20181113], DOI: 10.1109/TCI.2018.2875375
LIU DEHONG ET AL: "Coherent distributed array imaging under unknown position perturbations", 2016 4TH INTERNATIONAL WORKSHOP ON COMPRESSED SENSING THEORY AND ITS APPLICATIONS TO RADAR, SONAR AND REMOTE SENSING (COSERA), IEEE, 19 September 2016 (2016-09-19), pages 105 - 109, XP033004968, DOI: 10.1109/COSERA.2016.7745709
CHANGCHANG LIU ET AL: "Sparse self-calibration by map method for MIMO radar imaging", 2012 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING (ICASSP 2012) : KYOTO, JAPAN, 25 - 30 MARCH 2012 ; [PROCEEDINGS], IEEE, PISCATAWAY, NJ, 25 March 2012 (2012-03-25), pages 2469 - 2472, XP032227654, ISBN: 978-1-4673-0045-2, DOI: 10.1109/ICASSP.2012.6288416
CHANGCHANG LIU ET AL: "Sparse Self-Calibration Imaging via Iterative MAP in FM-Based Distributed Passive Radar", IEEE GEOSCIENCE AND REMOTE SENSING LETTERS, IEEE SERVICE CENTER, NEW YORK, NY, US, vol. 10, no. 3, 1 May 2013 (2013-05-01), pages 538 - 542, XP011520643, ISSN: 1545-598X, DOI: 10.1109/LGRS.2012.2212272
LIU DEHONG ET AL: "Coherent distributed array imaging under unknown position perturbations", 2016 4TH INTERNATIONAL WORKSHOP ON COMPRESSED SENSING THEORY AND ITS APPLICATIONS TO RADAR, SONAR AND REMOTE SENSING (COSERA), IEEE, 19 September 2016 (2016-09-19), pages 105 - 109, XP033004968, DOI: 10.1109/COSERA.2016.7745709
CHANGCHANG LIU ET AL: "Sparse self-calibration by map method for MIMO radar imaging", 2012 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING (ICASSP 2012) : KYOTO, JAPAN, 25 - 30 MARCH 2012 ; [PROCEEDINGS], IEEE, PISCATAWAY, NJ, 25 March 2012 (2012-03-25), pages 2469 - 2472, XP032227654, ISBN: 978-1-4673-0045-2, DOI: 10.1109/ICASSP.2012.6288416
CHANGCHANG LIU ET AL: "Sparse Self-Calibration Imaging via Iterative MAP in FM-Based Distributed Passive Radar", IEEE GEOSCIENCE AND REMOTE SENSING LETTERS, IEEE SERVICE CENTER, NEW YORK, NY, US, vol. 10, no. 3, 1 May 2013 (2013-05-01), pages 538 - 542, XP011520643, ISSN: 1545-598X, DOI: 10.1109/LGRS.2012.2212272
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P. C. (JP)
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