Title:
BEAM FORMATION DEVICE, RADAR DEVICE, AND BEAM FORMATION METHOD
Document Type and Number:
WIPO Patent Application WO/2020/148802
Kind Code:
A1
Abstract:
This beam formation device comprises: a Doppler bin detection unit (5) for detecting a target Doppler bin that is a Doppler bin in which a target signal is present from a correlation matrix calculated by a correlation matrix calculation unit (4) and a reception signal vector calculated by a Doppler analysis unit (3); a target signal removal unit (6) for removing the target signal in the target Doppler bin detected by the Doppler bin detection unit (5) from the correlation matrix calculated by the correlation matrix calculation unit (4) and thereby calculating a correlation matrix with the target signal removed therefrom; and a weighting calculation unit (7) for calculating an adaptive weighting for the reception signal vector from the correlation matrix with the target signal removed therefrom that has been calculated by the target signal removal unit (6). A beam formation unit (8) forms an adaptive beam from the reception signal vector calculated by the Doppler analysis unit (3) and the adaptive weighting calculated by the weighting calculation unit (7).
Inventors:
TAKAHASHI RYUHEI (JP)
Application Number:
PCT/JP2019/000903
Publication Date:
July 23, 2020
Filing Date:
January 15, 2019
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
G01S7/02; G01S3/74
Domestic Patent References:
| WO2018167952A1 | 2018-09-20 |
Foreign References:
| JP2005189171A | 2005-07-14 | |||
| JP2009058482A | 2009-03-19 | |||
| US5706013A | 1998-01-06 | |||
| JP2006258529A | 2006-09-28 | |||
| US7145503B2 | 2006-12-05 |
Other References:
SU , HONGTAO ET AL.: "Adaptive Beamforming for Nonstationary HF Interference Cancellation in Skywave Over-the-Horizon Radar", IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS, vol. 49, no. 1, 8 January 2013 (2013-01-08), pages 312 - 324, XP055545291, ISSN: 0018-9251, DOI: 10.1109/TAES.2013.6404105
MAO, XIAOJUN ET AL.: "Robust Adaptive Beamforming against Signal Steering Vector Mismatch and Jammer Motion", INTERNATIONAL JOURNAL OF ANTENNAS AND PROPAGATION, vol. 2015, 2015, pages 1 - 12, XP055545298, Retrieved from the Internet DOI: 10.1155/2015/780296
See also references of EP 3896480A4
MAO, XIAOJUN ET AL.: "Robust Adaptive Beamforming against Signal Steering Vector Mismatch and Jammer Motion", INTERNATIONAL JOURNAL OF ANTENNAS AND PROPAGATION, vol. 2015, 2015, pages 1 - 12, XP055545298, Retrieved from the Internet
See also references of EP 3896480A4
Attorney, Agent or Firm:
TAZAWA, Hideaki et al. (JP)
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