Title:
衛星受信機および衛星通信システム
Document Type and Number:
Japanese Patent JP7292438
Kind Code:
B2
Abstract:
A satellite receiver (1) includes: demultiplexing units (13a to 13d) each demultiplexing, into subchannel signals of a predetermined band, a digital reception signal obtained by converting a calibration signal received by a corresponding one of receiving antenna elements (11a to 11d) into a digital signal; excitation coefficient multiplication units (21a to 21d) multiplying the subchannel signals by an excitation coefficient; a complex adder (23) adding the subchannel signals multiplied by the excitation coefficient together for each subchannel signal of the same band; a correlation detection unit (22) calculating, with the use of one demultiplexing unit as a reference demultiplexing unit, a cross-correlation value for each subchannel signal output from each demultiplexing unit different from the reference demultiplexing unit with respect to a subchannel signal of a same band output from the reference demultiplexing unit; and an excitation coefficient generation unit generating a corrected excitation coefficient that is an excitation coefficient by which the excitation coefficient multiplication units multiply the subchannel signals based on a cross-correlation value and an excitation coefficient created in advance.
Inventors:
Akinori Fujimura
Hitoshi Ono
Yoshio Inazawa
Masaaki Kusano
Hitoshi Ono
Yoshio Inazawa
Masaaki Kusano
Application Number:
JP2021573636A
Publication Date:
June 16, 2023
Filing Date:
January 27, 2020
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
H04B7/08
Domestic Patent References:
| JP201819384A | ||||
| JP2012514407A | ||||
| JP20104347A | ||||
| JP2017184096A |
Foreign References:
| WO2019155952A1 |
Other References:
大倉 拓也、他3名,衛星搭載フェーズドアレーアンテナのゲーティング処理を用いた系統誤差較正の周波数依存性に関する検討,電子情報通信学会技術研究報告SAT2019-22,日本,電子情報通信学会,2019年08月,pp.31-35
Attorney, Agent or Firm:
Jun Takamura