Three Dimensional Imaging of Spinning Space Target Based on Multi-Antenna Interferometric Processing
CHEN Yongan
LUO Ying
WANG Kai
ZHANG Qun
SONG Tong
Abstract：This paper uses the idea of multi-antenna interferometric processing in interferometric inverse synthetic aperture radar for reference,and proposes a three dimensional imaging method by utilizing a L-shape three-antenna model for spinning space target in narrowband radar based on multi-antenna interfero-metric processing.First,the theory of spinning space target echo signal interferometric processing in nar-rowband radar is explained.Then,the influence of short-time Fourier transform (STFT)on the interfero-metric phase of echo signal is analyzed.Finally,through conducting STFT on the echo signal received by three antennas,the curves on time-frequency plane corresponding to different scatterers are effectively ex-tracted and separated,the interferometric phase of different scatterers is obtained,and three dimensional imaging for spinning space target is realized.Compared to the existing methods,this method only requires a single multi-antenna radar to obtain the real three dimensional distribution of target.The simulation re-sults show that the method is valid.
Keywords：multi-antenna interferometric processingmicro-Doppler effectspinning space targetthree di-mensional imaging
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 46-51 )