By Topic

Measuring radar cross section at short distance

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

1 Author(s)
Melin, J.O. ; Saab Missiles AB, Linköping Sweden

Radar cross sections (RCS) must be measured at large distance. We exclude here the special near-field methods. The distance (R) must be so large that different RCS contributions are added in the same way as at infinite distance. This leads to the rule R > 2D^{2}/\lambda if the target cross range is confined within \pm D/2 and a phase error of \pi /4 is tolerated. It is shown, however, that if the RCS is measured as a function of an angle and is low-pass filtered with a cut off period of \phi_{c} (radians), the distance requirement could be changed to R > 4D\phi^{-1}_{c}(1 - \lambda /2\phi_{c}D)) . All RCS measurements at such distances give approximately the same result after low-pass filtering. We assume that a set of isotropic point scatterers, accurately describes the target.

Published in:

Antennas and Propagation, IEEE Transactions on  (Volume:35 ,  Issue: 8 )