Title:
信号処理装置、信号処理方法および信号処理プログラム
Document Type and Number:
Japanese Patent JP7455565
Kind Code:
B2
Abstract:
A signal processing device including an acquisition unit configured to acquire signal waveform data corresponding to a frequency signal, a generation unit configured to generate a sine wave and a cosine wave of demodulation waveform data having a demodulation frequency between the first frequency and the second frequency, a first phase calculation unit configured to calculate a first phase based on a multiplication result of the sine wave and the signal waveform data at a first time and a multiplication result of the cosine wave and the signal waveform data at the first time, a second phase calculation unit configured to calculate a second phase based on a multiplication result of the sine wave and the signal waveform data at a second time advanced from the first time by a specified time interval less than one cycle of the demodulation frequency.
Inventors:
Hideaki Emoto
Mitsuyuki Shirae
Mitsuyuki Shirae
Application Number:
JP2019222173A
Publication Date:
March 26, 2024
Filing Date:
December 09, 2019
Export Citation:
Assignee:
MITSUBISHI HEAVY INDUSTRIES,LTD.
International Classes:
H04L27/14
Domestic Patent References:
| JP2003536310A | ||||
| JP2016522593A |
Attorney, Agent or Firm:
SSIP Patent Attorney Corporation