Title:
SIGNAL PROCESSING DEVICE, SIGNAL PROCESSING METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2024/053724
Kind Code:
A1
Abstract:
The present invention measures phase noise of a device under test while reducing at least one among the measurement cost and measurement time. This signal processing device comprises: an acquisition unit that acquires a plurality of signals to be measured, which are obtained by signals to be measured outputted from a device under test each being independently subjected to analog-to-digital conversion by a plurality of measuring instruments; and a derivation unit that derives a plurality of zero-crossing fluctuations (ZCFs), which is the time difference between the zero-crossing time of each of the plurality of signals to be measured and the zero-crossing time of an ideal sinusoidal signal; and a calculation unit that calculates phase noise of the device under test on the basis of the plurality of ZCFs.
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Inventors:
TAKEUCHI MAKOTO (JP)
SAITO HARUO (JP)
SAITO HARUO (JP)
Application Number:
PCT/JP2023/032792
Publication Date:
March 14, 2024
Filing Date:
September 08, 2023
Export Citation:
Assignee:
UNIV TOKYO (JP)
International Classes:
G01R23/16; G01R19/06; G01R19/175
Domestic Patent References:
| WO2001073455A1 | 2001-10-04 |
Foreign References:
| JP2005308512A | 2005-11-04 | |||
| JP2001337121A | 2001-12-07 | |||
| JP2019158418A | 2019-09-19 | |||
| JP2013250260A | 2013-12-12 | |||
| US5053714A | 1991-10-01 | |||
| US20180180655A1 | 2018-06-28 |
Attorney, Agent or Firm:
INABA, Yoshiyuki et al. (JP)
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