Title:
SIGNAL PROCESSING METHOD AND SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/138483
Kind Code:
A1
Abstract:
A signal processing method and system. The method comprises: acquiring ultrasonic Doppler signals (202); converting two adjacent groups of ultrasonic signals in the ultrasonic Doppler signals into frequency domain signals (204); on the basis of the frequency domain signals, replacing the ultrasonic signals missing in a preset time period (206), wherein the preset time period is the interval between the collection time of the two adjacent groups of ultrasonic signals; and determining a target ultrasonic Doppler signal on the basis of the signal replacement result (208). Performing signal interpolation on the basis of converted frequency domain signals increases the accuracy with which missing ultrasonic Doppler signals may be replaced on the basis of known data.
Inventors:
DA YIHUI (CN)
LIU XIN (CN)
ZHANG YAOWEN (CN)
LIU XIN (CN)
ZHANG YAOWEN (CN)
Application Number:
PCT/CN2023/071993
Publication Date:
July 27, 2023
Filing Date:
January 13, 2023
Export Citation:
Assignee:
WUHAN UNITED IMAGING HEALTHCARE CO LTD (CN)
International Classes:
A61B8/00; G10L21/0208
Foreign References:
| CN114376606A | 2022-04-22 |
Attorney, Agent or Firm:
METIS IP (CHENGDU) LLC (CN)
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