NDLI: Precession parameter estimation method of the cone-shaped target based on inverse synthetic aperture radar image sequence analysis

Content Provider	IET Digital Library
Author	Wang, Chao Yeh, Chunmao Wen, Shuliang Chen, Hang Yang, Jian
Abstract	The micro-motion features induced by space targets provide effective information for target classification and recognition. This study introduces the equivalent rotational velocity (ERV) estimation for precession parameter estimation of the cone-shaped target with inverse synthetic aperture radar image sequence. On the basis of the rotation matching relationship of precession cone-shaped target, the estimated ERV is used to build an eigenfunction, and the parameter searching set is obtained. Through theoretical analysis, the coupled parameters of the eigenfunction will concentrate on a curve on the searching plane. Thus, the parameter searching set is reduced to the neighbouring area of this curve, which reduces the computational burden greatly. Finally, the parameters are decoupled by the reconstructed radar observation angle, and the precession parameters such as precession period, precession angle, average observation angle, radial length and bottom radius of the target are precisely estimated. The proposed algorithm requires no prior information and it has high computational efficiency. Simulation results with electromagnetic data illustrate the validity of the proposed method.
Starting Page	1242
Ending Page	1248
Page Count	7
ISSN	17518784
Volume Number	13
e-ISSN	17518792
Issue Number	Issue 8, Aug (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-rsn/13/8
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-rsn.2018.5405
Journal	IET Radar, Sonar & Navigation
Publisher Date	2019-03-27
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Computer Vision And Image Processing Technique Coupled Parameter Effective Information Eigen Values And Eigen Function Equivalent Rotational Velocity Estimation Estimated ERV Feature Extraction Image Sequence Inverse Synthetic Aperture Radar Image Sequence Analysis Micromotion Feature Optical, Image And Video Signal Processing Parameter Estimation Parameter Searching Set Precession Angle Precession Cone-shaped Target Precession Parameter Precession Parameter Estimation Method Precession Period Radar Equipment Radar Imaging Radar Target Recognition Recognition Reconstructed Radar Observation Angle Rotation Matching Relationship Searching Plane Space Targets Synthetic Aperture Radar System And Application Target Classification Theoretical Analysis
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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