Modulation format estimation device, and modulation format estimation method

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United States of America Patent

PATENT NO 11700163
SERIAL NO

17410064

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Abstract

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A modulation format estimation device 100 includes: a frequency shift correction unit 112 configured to estimate the amount of a frequency shift using a baseband signal acquired from a received signal and correct the baseband signal based on an estimation result; a frequency error generation unit 122 configured to generate a plurality of frequency errors from a range set based on an error occurring in the estimation of the frequency shift amount; a frequency error introduction unit 123 configured to acquire learning baseband signals in which each of a plurality of source signals modulated by different modulation formats is frequency-shifted by each frequency error; and a modulation format estimation unit 113 configured to input a corrected baseband signal to a first machine learning model created by machine learning using learning data including the plurality of learning baseband signals and a label, and estimate a modulation format of the received signal.

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Patent Owner(s)

  • NEC CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kishimoto, Kaoru Tokyo, JP 1 0
Ohtsuji, Taichi Tokyo, JP 30 61
Takahashi, Kiyohiko Tokyo, JP 16 457
Takeuchi, Toshiki Tokyo, JP 77 235

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