Method and system for extracting and correcting ringing component in dynamic pressure measurement signal of shock wave flow field

US12210972B2 · kind B2 · utility

Assignee

• WUHAN INSTITUTE OF TECHNOLOGY · CN

Inventors

• Hanyu Hong · 红钢城街道, CN
• Zhenjian Yao · 红钢城街道, CN
• Yongsheng Li · 安丰镇, CN
• Deng Chen · 红钢城街道, CN
• Liangchun Zhang · 红钢城街道, CN
• Yaling Ji · 红钢城街道, CN
• Jinlin Song · 红钢城街道, CN
• Yanfei Chen · Pittsburgh, US
• Likun Huang · 红钢城街道, CN

Key dates

• Filing date: Apr 10, 2024
• Grant date: Jan 28, 2025
• Expiry date: Apr 10, 2044

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T90/00
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A method for extracting and correcting a ringing component in a dynamic pressure measurement signal of a shock wave flow field includes: adaptively decomposing a dynamic pressure measurement signal of a shock wave flow field through an empirical mode decomposition (EMD) method, and extracting a ringing component in the dynamic pressure measurement signal of the shock wave flow field; constructing a ringing component distortion correction model through a convolutional neural network (CNN) and a dataset through a staggered spanning dataset construction method; and predicting a time series of a segment with mode mixing in the ringing component, to accurately extract a ringing component in a dynamic pressure response signal. The method combines advantages of an adaptive signal decomposition method and a CNN model identification method.