Title:
RELAY DEVICE, RELAY SATELLITE, AND SATELLITE COMMUNICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2014/112442
Kind Code:
A1
Abstract:
The present invention is provided with the following: a reception analog switch matrix (22) that outputs, to two or more reception processing units that correspond respectively to a plurality of reception ports (15-1 through 15-N), a wideband received signal that has too large a bandwidth to be processed by the reception processing units; a connection unit (31) that outputs, to a transmission processing unit or units, demultiplexed signals demultiplexed by the reception processing units; a transmission analog switch matrix whereby signals that have been subjected to transmission processing by one or more transmission processing units into which demultiplexed signals corresponding to the same received signal had been inputted are outputted to the same transmission antenna; a local generation unit (25) that generates two or more local signals having different frequencies and supplies said signals to the reception processing units; a local phase-difference computation unit (41) that computes the phase difference(s) between the local signals and inputs said phase difference(s) to the reception processing units; and reception-phase-difference correction units (29-1 through 29-N) that perform phase corrections on the basis of the aforementioned phase difference(s). The reception processing units perform reception processing on divided signals each obtained by ex who will tracting part of the band of the high-bandwidth received input signal on the basis of the local signals.
Inventors:
FUJIMURA AKINORI (JP)
SASAKI TSUYOSHI (JP)
SASAKI TSUYOSHI (JP)
Application Number:
PCT/JP2014/050359
Publication Date:
July 24, 2014
Filing Date:
January 10, 2014
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H04B7/185
Domestic Patent References:
| WO2012147753A1 | 2012-11-01 |
Foreign References:
| JP2011205449A | 2011-10-13 | |||
| JP2009290763A | 2009-12-10 | |||
| JP2006516867A | 2006-07-06 |
Other References:
See also references of EP 2947788A4
Attorney, Agent or Firm:
SAKAI, HIROAKI (JP)
Hiroaki Sakai (JP)
Hiroaki Sakai (JP)
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