Very high resolution radar imaging with a stepped frequency system

S. Valle; L. Zanzi; H. Lentz; H. M. Braun

doi:10.1117/12.383613

27 April 2000 Very high resolution radar imaging with a stepped frequency system

S. Valle, L. Zanzi, H. Lentz, H. M. Braun

Proceedings Volume 4084, Eighth International Conference on Ground Penetrating Radar; (2000) https://doi.org/10.1117/12.383613
Event: 8th International Conference on Ground Penetrating Radar, 2000, Gold Coast, Australia

Abstract

There are may potential applications of the Ground Penetrating Radar waiting for a technology breakthrough in the direction of high resolution. We present some experiments where the requirement of very high resolution is pursued through the effective use of the synthetic aperture technique. The successful application of this technique is subject to the compliance with some essential conditions. First of all, the capacity of the system to illuminate the target with a sufficient aperture. A new non-commercial flexible stepped frequency system has been tested in the frequency range of 2 - 6 GHz. A second factor that is essential for performing a good data focusing is the accuracy of the antenna positioning system: a few millimeters precision should be ensured for the above mentioned applications. A careful design of the processing procedure is the third factor that is essential to exploit all the potential resolution of the data. Of course, the procedure should include a SAR focusing algorithm that improves the resolution and that is quite effective in clutter reduction, especially in the 3D case. Tests indicate that the real footprint of the antenna should be used to calibrate the aperture of the focusing operator because this has a positive impact on the SNR of the final image.

Citation Download Citation

S. Valle, L. Zanzi, H. Lentz, and H. M. Braun "Very high resolution radar imaging with a stepped frequency system", Proc. SPIE 4084, Eighth International Conference on Ground Penetrating Radar, (27 April 2000); https://doi.org/10.1117/12.383613

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available