O.O. Bezvesilniy

  • Citations Per Year
Learn More
A Ku-band airborne SAR with Doppler centroid estimation, autofocusing, and indication of moving targets has been recently developed and tested at the Institute of Radio Astronomy of the National Academy of Sciences of Ukraine. This paper describes the setup of this instrument, its main components, and the signal processing technique introduced. Results(More)
An airborne SAR with indication of moving targets has been developed and tested at the Institute of Radio Astronomy of the National Academy of Sciences of Ukraine. This paper describes the setup of this instrument, its main components, and the signal processing technique. Results obtained during the first flight tests are summarized as well.
In the paper, we demonstrate several novel promising applications of high-accuracy Doppler measurements for airborne SAR systems. These are 1) estimation of the antenna beam orientation angles by analyzing the dependence of the Doppler centroid on the range, 2) improvement of quality of SAR images by an accurate estimation of the Doppler rate, and 3)(More)
In this paper, Doppler signal processing having a large potential for further developing and gaining new applications have been demonstrated. This has been illustrated by several examples related with the estimation of the SAR platform orientation angles from the radar returns, improving quality of SAR images based on a high-accuracy estimation of the(More)
In the paper, a novel method is proposed for retrieving 3D relief of ground surface by using a single-antenna, squint-mode airborne SAR. The main idea of the method is based on the fact that the spatial 3D location of a target can be found as the intersection of the range sphere, the Doppler cone, and the elevation plane of the antenna pattern. An accurate(More)
In this paper, we demonstrate several novel promising techniques and applications of accurate Doppler measurements for airborne SAR imaging. A technique for estimation of the antenna beam orientation angles from Doppler centroid measurements is described. This technique provides an effective clutter-lock. The estimated angles can be used for correction of(More)
  • 1