Title:
IFOF-TYPE OPTICAL TRANSMISSION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2024/013835
Kind Code:
A1
Abstract:
An IFoF-type optical transmission system according to the present disclosure comprises: a transmission-side digital signal processing device (100) including a correction processing unit (110) and a calibration signal generation unit (130); and a reception-side digital signal processing device (600) including a digital splitting processing unit (610) and a weighting correction value computation unit (620). The calibration signal generation unit (130) generates a calibration signal (Scal(t)). The digital splitting processing unit (610) executes demultiplexer processing and splits the calibration signal (Scal(t)) into a plurality of baseband signals (SOUT_1(t), SOUT_2(t), ... , SOUT_n(t)). The weighting correction value computation unit (620) calculates parameter coefficients (a1, a2, ... , an) on the basis of the baseband signals (SOUT_1(t), SOUT_2(t), ... , SOUT_n(t)). The correction processing unit (110) uses the parameter coefficients (a1, a2, ... , an) to correct the respective amplitudes of a plurality of input wireless signal streams which are input.
Inventors:
NISHIOKA JUNYA (JP)
AKAMATSU TAKATOSHI (JP)
KONISHI YOSHIAKI (JP)
AKAMATSU TAKATOSHI (JP)
KONISHI YOSHIAKI (JP)
Application Number:
PCT/JP2022/027334
Publication Date:
January 18, 2024
Filing Date:
July 12, 2022
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H04J14/02
Foreign References:
| JP2019041285A | 2019-03-14 | |||
| JP2020017836A | 2020-01-30 | |||
| US20140247906A1 | 2014-09-04 | |||
| JP2011211516A | 2011-10-20 | |||
| US20120224864A1 | 2012-09-06 | |||
| JP2017050768A | 2017-03-09 |
Attorney, Agent or Firm:
SANNO PATENT ATTORNEYS OFFICE (JP)
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