A Short Range Synthetic Aperture Imaging Radar with Rotating Antenna

Ali F, Urban A, Vossiek M (2011)

Publication Language: English

Publication Type: Journal article

Publication year: 2011

Journal

International Journal of Electronics and Telecommunications Elsevier BV

Publisher: Elsevier BV

Book Volume: 57

Journal Issue: 1

DOI: 10.2478/v10177-011-0014-y

Abstract

The design of a short range synthetic aperture imaging radar is introduced in this paper. A radar hologram is acquired using a small omnidirectional antenna that is mounted on a rotating platform. After each turn of the platform a high resolution 360° 2D image is reconstructed; a rotating window function optimizes the reconstructed image function to get the best image focus for detecting both weak and strong scatterers. The rotating window function depends on the target direction and is executed for each image point and each target direction. The size of the synthetic aperture - and thus the lateral resolution of the imaging system - is determined by the diameter of the circular antenna trajectory. In contrast to common radar scanner concepts that utilize highly directional and thus bulky antennas, the proposed scanner concept has the advantage of using a small, lightweight omni-directional antenna. The developed radar system is much more compact and the scanning mechanics are significantly simplified. Furthermore, an omni-directional antenna offers very straightforward options for powering the radar on the rotation platform. Measurement results obtained with a 24 GHz FMCW short range radar sensor illustrate the performance of the proposed SAR imaging method.

Authors with CRIS profile

Martin Vossiek Lehrstuhl für Hochfrequenztechnik

Involved external institutions

Technische Universität Clausthal / Clausthal University of Technology DE Germany (DE)

How to cite

APA:

Ali, F., Urban, A., & Vossiek, M. (2011). A Short Range Synthetic Aperture Imaging Radar with Rotating Antenna. International Journal of Electronics and Telecommunications, 57(1). https://doi.org/10.2478/v10177-011-0014-y

MLA:

Ali, Faiza, Alexander Urban, and Martin Vossiek. "A Short Range Synthetic Aperture Imaging Radar with Rotating Antenna." International Journal of Electronics and Telecommunications 57.1 (2011).

BibTeX: Download