Title:
METHOD FOR EXTRACTING MICRO-MOTION FEATURES OF AIRCRAFT ROTOR WING
Document Type and Number:
WIPO Patent Application WO/2020/228455
Kind Code:
A1
Abstract:
A method for extracting micro-motion features of an aircraft rotor wing. According to the method, low-rank decomposition is applied to the saliency detection of a rotor wing echo time-frequency diagram, such that a higher accuracy in extracting micro-motion features of a rotor wing can still be achieved at a low signal-to-noise ratio. The method has accuracy and robustness for the maximum micro-Doppler frequency offset estimation of an aircraft rotor wing echo signal, has a certain anti-interference capability, and facilitates aerial rotor wing monitoring.
Inventors:
SONG CHUNYI (CN)
XIE CONGSHUANG (CN)
XU ZHIWEI (CN)
XIE CONGSHUANG (CN)
XU ZHIWEI (CN)
Application Number:
PCT/CN2020/084007
Publication Date:
November 19, 2020
Filing Date:
April 09, 2020
Export Citation:
Assignee:
UNIV ZHEJIANG (CN)
International Classes:
G01S7/35
Foreign References:
| CN110146853A | 2019-08-20 | |||
| CN102914768A | 2013-02-06 | |||
| CN105678781A | 2016-06-15 | |||
| CN107463744A | 2017-12-12 | |||
| US6388739B1 | 2002-05-14 | |||
| CN109633629A | 2019-04-16 | |||
| CN103954962A | 2014-07-30 |
Attorney, Agent or Firm:
HANGZHOU QIUSHI PATENT OFFICE CO., LTD. (CN)
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