Images of urban areas by a synthetic aperture radar simulator

Shahram Tajbakhsh; Min-Joon Kim; H. M. Berenyi; Ronald E. Burge

doi:10.1117/12.197549

21 December 1994 Images of urban areas by a synthetic aperture radar simulator

Shahram Tajbakhsh, Min-Joon Kim, H. M. Berenyi, Ronald E. Burge

Proceedings Volume 2316, SAR Data Processing for Remote Sensing; (1994) https://doi.org/10.1117/12.197549
Event: Satellite Remote Sensing, 1994, Rome, Italy

Abstract

An urban scene is a very complex variety of length scales ranging from much bigger to much smaller than the wavelength of the radiation emitted by a Synthetic Aperture Radar (SAR). The exact solution to this scattering problem requires the solution of Maxwell's equations for the combination of source and scattering objects present in the scene, which for any reasonable size target area is computational too large to be realistic. Hence while a 'numerically exact' solution is ruled out but as is usual in electromagnetic problems some form of appropriate modeling scheme is used. In this case we assume that the major contributors to the scattering are the planar surfaces which are generally many times larger than the wavelength of the radiation used. A geometrical optics ray-tracing approach is employed to calculate the incident field on each surface illuminated by the radar system whether by direct or indirect illumination (multiple bounces within the target environment geometry). In this way the large amount of multiple scatter that arises from the combination of dihedral and trihedral corners associated with buildings is taken into account. The strength or amplitude and polarization characteristics of the radiation returning to the radar can be calculated by applying the Rayleigh-Rice scattering theory at each surface.

Citation Download Citation

Shahram Tajbakhsh, Min-Joon Kim, H. M. Berenyi, and Ronald E. Burge "Images of urban areas by a synthetic aperture radar simulator", Proc. SPIE 2316, SAR Data Processing for Remote Sensing, (21 December 1994); https://doi.org/10.1117/12.197549

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