ISAR imaging of moving targets via the Gabor wavelet transform

Gabriel Thomas; Benjamin C. Flores; Ana Martinez

doi:10.1117/12.283948

24 September 1997 ISAR imaging of moving targets via the Gabor wavelet transform

Gabriel Thomas, Benjamin C. Flores, Ana Martinez

Proceedings Volume 3161, Radar Processing, Technology, and Applications II; (1997) https://doi.org/10.1117/12.283948
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

Abstract

We describe an approach for inverse synthetic aperture radar (ISAR) imaging based on the Gabor wavelet transform. The Gabor basis function introduces three signal parameters which allow the components of a target signature to be mapped into a three-dimensional domain. Time, range, and frequency constitute the dimensions of this domain. Component distribution over the range and frequency dimensions corresponds to a snap shot of the target's scattering centers at a particular observation time. The snap shot resolution can be adjusted in each dimension by properly selecting the Gabor wavelet parameters. Parameter selection, as discussed in this paper, is used to minimize the quadratic phase distortion associated with moving target components. For multiple targets experiencing different velocities, selective motion compensation is incorporated to the Gabor wavelet transform approach, thus yielding focused imagery.

Citation Download Citation

Gabriel Thomas, Benjamin C. Flores, and Ana Martinez "ISAR imaging of moving targets via the Gabor wavelet transform", Proc. SPIE 3161, Radar Processing, Technology, and Applications II, (24 September 1997); https://doi.org/10.1117/12.283948

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