NDLI: Space-variant RCMC method for squint beam-steering SAR imaging on high-speed manoeuvring platforms

Content Provider	IET Digital Library
Author	Bie, Bowen Sun, Guang Cai Xing, Mengdao
Abstract	The focusing of squint beam-steering synthetic aperture radar (SAR) data is a challenging task for the technical difficulty of space-variant range cell migration correction (RCMC). It is more complicated when considering the manoeuver of high-speed platforms. The conventional Doppler domain RCMC method is with low performance and requires a large amount of zero-padding. This Letter proposes a modified RCMC method which removes the space-variant range cell migration (RCM) components by deramp-keystone transform and then compensates the unified RCM terms in the time domain. Compared with the conventional method, the proposed one is with high performance and can avoid zero-padding. This method is validated by the simulated SAR data.
Starting Page	481
Ending Page	483
Page Count	3
ISSN	00135194
Volume Number	55
e-ISSN	1350911X
Issue Number	Issue 8, Apr (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/el/55/8
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/el.2019.0237
Journal	Electronics Letters
Publisher Date	2019-02-28
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Beam Steering Conventional Doppler Domain RCMC Method Deramp-keystone Transform Doppler Radar High-speed Manoeuvring Platform High-speed Platform Integral Transforms Mathematical Analysis Modified RCMC Method Radar Equipment Radar Imaging Simulated SAR Data Space-variant Range Cell Migration Component Space-variant Range Cell Migration Correction Method Space-variant RCMC Method Squint Beam-steering SAR Imaging Squint Beam-steering Synthetic Aperture Radar Data Synthetic Aperture Radar System And Application Time Domain Time Domain Analysis Transform Zero-padding
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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