Title:
SIGNAL PROCESSING DEVICE, WIRELESS COMMUNICATION DEVICE, SIGNAL PROCESSING METHOD, AND NON-TRANSITORY COMPUTER READABLE MEDIUM ON WHICH PROGRAM IS STORED
Document Type and Number:
WIPO Patent Application WO/2022/201764
Kind Code:
A1
Abstract:
A signal processing device (10) according to the present disclosure comprises an adjustment unit (11) that adjusts one or both of an input signal and a calibration signal, which is for performing calibration between transmission systems, so that a difference between the signal power of the input signal and the signal power of the calibration signal is reduced. The signal processing device (10) also comprises a compensation unit (12) that performs distortion compensation between the input signal and the calibration signal. The signal processing device (10) further comprises an amplifier (13) that amplifies the input signal and the calibration signal, and an output unit (14) that outputs, to the amplifier (13), the input signal and the calibration signal that have been adjusted by the adjustment unit (11). Thus, provided are a signal processing device, a wireless communication device, a signal processing method, and a program that suppress a nonlinear distortion due to an amplifier and a distortion due to the memory effect of an amplifier in a calibration signal.
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Inventors:
MIURA TAKUMA (JP)
Application Number:
PCT/JP2022/000936
Publication Date:
September 29, 2022
Filing Date:
January 13, 2022
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
H04B7/06; H03F1/32; H03F3/24
Domestic Patent References:
| WO2019193641A1 | 2019-10-10 |
Foreign References:
| JP2018195955A | 2018-12-06 | |||
| US6304140B1 | 2001-10-16 | |||
| JP2009111958A | 2009-05-21 | |||
| JP2006005525A | 2006-01-05 |
Attorney, Agent or Firm:
IEIRI Takeshi (JP)
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