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Fast ISAR autofocus algorithm via sub-aperture

Translational motion compensation (TMC) is a significant step for inverse synthetic aperture radar (ISAR), while phase autofocus plays an important role in TMC. By eigenvalue decomposition (EVD), principle eigenvectors of the covariance matrix constructed by the complex range-aligned signal can be a...

Ful tanımlama

Kaydedildi:
Asıl Yazarlar: Jinjian Cai, Yuanyuan Song, Yinghao Sun, Feifeng Liu
Materyal Türü: Artigo
Dil:Inglês
Baskı/Yayın Bilgisi: Wiley 2019-08-01
Seri Bilgileri:The Journal of Engineering
Konular:
radar imaging
eigenvalues and eigenfunctions
synthetic aperture radar
motion compensation
covariance matrices
fast isar autofocus algorithm
translational motion compensation
tmc
significant step
inverse synthetic aperture radar
eigenvalue decomposition
principle eigenvectors
covariance matrix
complex range-aligned signal
isar-phase autofocus
cross-range resolution
observation pulse number
heavy computational complexity
sub-aperture evd-based method
full-aperture signal
multiple partially overlapped sub-apertures
average range profiles
conventional evd-based methods
phase errors
jump-phase compensation
phase-error estimation
full-aperture phase autofocus
computational efficiency
traditional autofocus algorithms
Online Erişim:https://digital-library.theiet.org/content/journals/10.1049/joe.2019.0409
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