摘要
Real-time and high-resolution imaging is demonstrated based on field trial detection of a non-cooperative target using a photonics-based inverse synthetic aperture radar（ISAR）.By photonic generation and de-chirping of broadband linear frequency modulation signals,the radar can achieve a high range resolution thanks to the large instantaneous bandwidth（8 GHz at the K band）,as well as real-time ISAR imaging using low-speed analog-to-digital conversion（25 MSa/s）.A small-size unmanned aerial vehicle is employed as the noncooperative target,and ISAR imaging is realized with a resolution far better than those achieved by the previously reported photonics-based ISARs.The capability for real-time ISAR imaging is also verified with an imaging frame rate of 25 fps.These results validate that the photonics-based radar is feasible in practical real-time and highresolution ISAR imaging applications.
Real-time and high-resolution imaging is demonstrated based on field trial detection of a non-cooperative target using a photonics-based inverse synthetic aperture radar（ISAR）.By photonic generation and de-chirping of broadband linear frequency modulation signals,the radar can achieve a high range resolution thanks to the large instantaneous bandwidth（8 GHz at the K band）,as well as real-time ISAR imaging using low-speed analog-to-digital conversion（25 MSa/s）.A small-size unmanned aerial vehicle is employed as the noncooperative target,and ISAR imaging is realized with a resolution far better than those achieved by the previously reported photonics-based ISARs.The capability for real-time ISAR imaging is also verified with an imaging frame rate of 25 fps.These results validate that the photonics-based radar is feasible in practical real-time and highresolution ISAR imaging applications.
基金
supported in part by the National Natural Science Foundation of China(Nos.61401201 and61422108)
the Aviation Science Foundation of China(No.2015ZC52024)
the Open Fund of Science and Technology on Monolithic Integrated Circuits and Modules Laboratory(No.20150C1404)
关键词
ISAR
PHOTONICS
cooperative
PHOTONICS
unmanned
APERTURE
bandwidth
verified
INVERSE
validate
ISAR,photonics,cooperative,Photonics,unmanned,aperture,bandwidth,verified,inverse,validate,
