Affiliation of Author(s):电子信息工程学院
Journal:CHINESE OPTICS LETTERS
Key Words:CHIRP RATE DISTRIBUTION MICROWAVE PHOTONICS SIGNAL GENERATION RADAR
Abstract: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 high-resolution ISAR imaging applications.
ISSN No.:1671-7694
Translation or Not:no
Date of Publication:2017-11-10
Co-author:郭清水,张营,姚瑶,周沛,Daiyin Zhu,Shilong PAN
Correspondence Author:Shilong PAN,zfz
Date of Publication:2017-11-10