Title:
干渉除去装置、制御回路、記憶媒体および干渉中心周波数推定方法
Document Type and Number:
Japanese Patent JP7004877
Kind Code:
B2
Abstract:
An interference cancellation device includes a data symbol extraction unit that extracts a data symbol portion from a received signal, a null symbol extraction unit that extracts a null symbol portion from the received signal, a data symbol power calculation unit that calculates a data symbol power estimated value, a null symbol power calculation unit that calculates a null symbol power estimated value, a null symbol spectrum calculation unit that calculates a null symbol spectrum from a null symbol signal, and an interference center frequency estimation unit that eliminates the effect of an image for an interference in calculation of an interference bandwidth when is calculating an interference center frequency estimated value, using a data symbol signal, the data symbol power estimated value, the null symbol power estimated value, and the null symbol spectrum.
Inventors:
Sakai Manabu
Hiroshi Tomitsuka
Yuki Iura
Hiroshi Tomitsuka
Yuki Iura
Application Number:
JP2021565817A
Publication Date:
February 10, 2022
Filing Date:
February 25, 2020
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
G01R23/14
Domestic Patent References:
| JP202022120A | ||||
| JP2010183590A | ||||
| JP2005292147A | ||||
| JP60500988A | ||||
| JP6501987B1 | ||||
| JP2018117335A | ||||
| JP2011163838A |
Foreign References:
| WO2010047134A1 | ||||
| US20170324485 | ||||
| US20090259439 | ||||
| CN109188077A |
Attorney, Agent or Firm:
Takamura Jun
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