Title:
SIGNAL PROCESSING APPARATUS, SIGNAL PROCESSING METHOD, AND NON-TRANSITORY COMPUTER-READABLE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2022/137891
Kind Code:
A1
Abstract:
A signal processing apparatus (100) according to an embodiment is provided with: a distortion compensating means (101) that performs a distortion compensating process for compensating for non-linear distortion with respect to at least one of a plurality of input signals, and that outputs a signal obtained by the distortion compensating process; a plurality of amplifiers (102) that amplify a plurality of input signals including the signal output from the distortion compensating means (101), and that output output signals; a calculation means (103) which, during a calibration operation of the signal processing apparatus (100) in which a calibration signal is used as the plurality of input signals and input to the plurality of amplifiers (102), calculates, for each input signal, a comparison result for at least one of the phase, amplitude, and intensity of the input signal and an output signal corresponding to the input signal; and a control means (104) for controlling whether, on the basis of the calculated comparison result, the distortion compensating means (101) should perform the distortion compensating process on the calibration signal.
Inventors:
MOCHIZUKI TAKUJI (JP)
Application Number:
PCT/JP2021/041999
Publication Date:
June 30, 2022
Filing Date:
November 16, 2021
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
H04B7/06; H03F1/32; H03F3/24; H04B1/04; H04B7/0452
Domestic Patent References:
| WO2009004733A1 | 2009-01-08 | |||
| WO2018061899A1 | 2018-04-05 |
Foreign References:
| JP2018195955A | 2018-12-06 |
Attorney, Agent or Firm:
IEIRI Takeshi (JP)
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