Extracting of Micro Doppler Parameter of Helicopter Rotor Based on Time-Frequency Analysis

Zhang, Lei; Huang, Guo Qing

doi:10.4028/www.scientific.net/amm.130-134.2696

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2019

2020

Publication Types

Select...

Article1

Other1

Relationship

Self Cite0

Independent2

Authors

Journals

Cited by 2 publications

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

Rotor target recognition method based on radar echo time-frequency map feature

Zhu¹,

Xu²,

Xia³

et al. 2020

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

In order to realize the identification of different rotor targets, five typical rotor targets are selected as the research object. five typical single-rotor or twin-rotor targets, AH-64 Apache helicopter, K-50 armed helicopter, K-MAX hoist helicopter, V-22 tilt-rotor aircraft, and WZ-9 armed helicopter, were selected as research objects. the echo signals are obtained according to the rotor target radar echo model in free space, and then the time-frequency image is obtained by short-time fourier transform. According to the difference of the time-frequency images of five types of rotorcraft targets, two typical features that characterize the map differences, namely the histogram of oriented gradient feature and the gray level co-occurrence matrix feature, are extracted. Finally, the support vector machine (SVM) is used to realize the recognition of five types of rotor targets, and recognition accuracy reached 93.3%.

show abstract