Open AccessPrecise frequency division algorithm for residual aperture‐variant motion compensation in synthetic aperture radar
Author(s) -
Lu Qianrong,
Huang Penghui,
Gao Yesheng,
Liu Xingzhao
Publication year - 2019
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2018.5294
Subject(s) - synthetic aperture radar , residual , motion compensation , division (mathematics) , inverse synthetic aperture radar , computer science , frequency divider , algorithm , radar imaging , side looking airborne radar , radar , compensation (psychology) , computer vision , aperture (computer memory) , artificial intelligence , continuous wave radar , mathematics , acoustics , telecommunications , physics , psychology , arithmetic , power dividers and directional couplers , psychoanalysis
The effects of complicated motion error on synthetic aperture radar have been analysed. A precise frequency‐division is proposed based on the precise angle‐frequency relation. The proposed method completely compensates the residual aperture‐variant motion and can be integrated into the traditional image formation algorithms directly. Both the simulated data and real airborne data have been applied to validate this method.