Open AccessAir‐borne linear frequency modulation range interrupted continuous‐wave SAR for high‐resolution imaging
Author(s) -
Xu Wei,
Huang Pingping,
Tan Weixian,
Zhang Zhenhua,
Dong Yifan,
Gao Zhiqi
Publication year - 2019
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2019.0451
Subject(s) - continuous wave , synthetic aperture radar , side looking airborne radar , radar imaging , modulation (music) , radar , antenna (radio) , computer science , range (aeronautics) , acoustics , frequency modulation , mode (computer interface) , inverse synthetic aperture radar , remote sensing , optics , continuous wave radar , radio frequency , geology , physics , telecommunications , materials science , laser , operating system , composite material
To avoid two apertures adopted in air‐borne continuous‐wave (CW) synthetic aperture radar (SAR) systems, the novel air‐borne linear frequency modulation range interrupted continuous wave (LFMRICW) SAR imaging mode is presented here. Different from the conventional air‐borne CW imaging mode, it only requires one antenna to transmit radar pulses and receive its echoes. The system design of this mode is given in detail, and its imaging processor based on a linear prediction model (LPM) is proposed according to echo characteristics. Simulation results on distributed targets validate the presented new air‐borne imaging scheme and its corresponding imaging processor.