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Title:
SATELLITE RECEIVER AND SATELLITE COMMUNICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/152660
Kind Code:
A1
Abstract:
A satellite receiver (1) comprises: branching units (13a to 13d) that branches digital reception signals, which is obtained by converting calibration signals respectively received by reception antenna elements (11a to 11d) to digital signals, into a plurality of subchannel signals in a prescribed band; excitation coefficient multiplication units (21a to 21d) that multiply the plurality of subchannel signals by an excitation coefficient; a complex adder (23) that adds together the subchannel signals multiplied by the excitation coefficient for the respective subchannel signals in the same band; a correlation detection unit (22) that sets one branching unit as a reference branching unit, and calculates a cross-correlation value of the subchannel signals outputted from the branching unit different from the reference branching unit with respect to the subchannel signals in the same band outputted from the reference branching unit; and an excitation coefficient generation unit that generates a corrected excitation coefficient that is an excitation coefficient with which the excitation coefficient multiplication unit multiplies the subchannel signals on the basis of the cross-correlation value and the excitation coefficient generated in advance.

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Inventors:
FUJIMURA AKINORI (JP)
ONO HITOMI (JP)
INASAWA YOSHIO (JP)
KUSANO MASAAKI (JP)
Application Number:
PCT/JP2020/002765
Publication Date:
August 05, 2021
Filing Date:
January 27, 2020
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H04B7/08
Domestic Patent References:
WO2019155952A12019-08-15
WO2019155952A12019-08-15
Foreign References:
JP2018019384A2018-02-01
JP2012514407A2012-06-21
Other References:
TAKUYA OKURA, AMANE MIURA, TERUAKI ORIKASA, SHINJI SENBA: "Study on frequency characteristic for the measurement of the systematic errors using gating process for on-board phased array antennas", IEICE TECHNICAL REPORT, vol. 119, no. 175 (SAT2019-22), 22 August 2019 (2019-08-22), JP, pages 31 - 35, XP009530247, ISSN: 0913-5685
Attorney, Agent or Firm:
TAKAMURA, Jun (JP)
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