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Extraction of Helicopter Rotor Physical Parameters Based on Time-Frequency Image Processing

  • Chenxiao Lai
  • Daiying ZhouEmail author
Conference paper
  • 12 Downloads
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 657)

Abstract

This paper proposed a method for extracting the physical parameters of helicopter rotors through processing micro-Doppler time-frequency spectrum. We applied image filtering and image segmentation to the time-frequency spectrum of narrow-band RCS data so as to reduce background noise, improve the definition of the spectrum and accurately extract the time-frequency signal line. Then, the parameters such as rotation period, blade length and blade count of the helicopter rotor could be derived directly from the time-frequency signal line, which can be employed to identify the type or even the model of helicopter target. This method solved the problem that the physical parameters of helicopter rotor cannot be extracted precisely from narrow-band RCS data. The simulation results verified the effectiveness of the approach.

Keywords

Feature extraction of micro-Doppler Analysis of time-frequency spectrum image processing Estimation of physical parameters 

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Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  1. 1.School of Information and Communication EngineeringUniversity of Electronic Science and TechnologyChengduChina

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