Ballistic Target ISAR Imaging Based on Time-Frequency Analysis
LONG Ge-nong
ZHANG Jie
TONG Ning-ning
FENG Cun-qian
NIU Chao
Abstract：When ballistic target is moving with micro-motion,the Doppler frequency of its scattering points will be modulated by micro-motion which will have negative effect on imaging.In this article,a new meth-od called time selection imaging based on abor transformation formula is put forward,which will focus im-age effectively.The proposed method seerches the Ddoppler fraguency in time quantum of syraight line ap-proximation in time-frequency domain for the target And the effectiveness of this method is verifies by simulation.
Keywords：ballistic targetISARmicro-motionimaging
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 42-45 )