Title:
COMMUNICATION SYSTEM, RECEIVER, EQUALIZING SIGNAL PROCESSING CIRCUIT, METHOD, AND COMPUTER-READABLE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2023/162143
Kind Code:
A1
Abstract:
The present invention can compensate for various types of distortion while suppressing an increase of the calculation amount. A first filter (23) performs compensation for first distortion included in reception signals which have been coherently received, on the reception signals and complex conjugate signals thereof, and outputs the reception signals and the complex conjugate signals thereof for which the compensation for the first distortion has been performed. A second filter (24) included in a filter group (25) receives, as input signals, the reception signals and the complex conjugate signals thereof for which the compensation for the first distortion has been performed, compensates for second distortion included in the reception signals, and outputs the reception signals for which the compensation for the second distortion has been performed. A coefficient updating means (26) adaptively controls a filter coefficient of the second filter (24) on the basis of a difference between an output signal outputted from the filter group (25) and a prescribed value of the output signal.
Inventors:
ARIKAWA MANABU (JP)
SATO MASAKI (JP)
SATO MASAKI (JP)
Application Number:
PCT/JP2022/007907
Publication Date:
August 31, 2023
Filing Date:
February 25, 2022
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
H03H17/00; H03H21/00; H03H17/06; H04B10/61; H04J14/06
Domestic Patent References:
| WO2018079598A1 | 2018-05-03 | |||
| WO2021210259A1 | 2021-10-21 |
Foreign References:
| JP2020141294A | 2020-09-03 |
Attorney, Agent or Firm:
IEIRI Takeshi (JP)
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