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Wideband Measurements of the Forward RCS and the Extinction Cross Section

Larsson, Christer LU and Gustafsson, Mats LU (2013) In Applied Computational Electromagnetics Society Journal 28(12). p.1145-1152
Abstract
This paper describes the development

of a method based on measurements of the radar

cross section (RCS) amplitude and phase in the

forward direction to determine the extinction cross

section for the 2.5 GHz - 38 GHz frequency range

using the optical theorem. Forward RCS

measurements are technically complicated due to

that the direct signal has to be subtracted from the

total signal at the receiving antenna in order to

extract the forward RCS. The efficiency of this

subtraction as a function of time is evaluated. A

traditional calibration method using a calibration

target and a second method that does not require a

... (More)
This paper describes the development

of a method based on measurements of the radar

cross section (RCS) amplitude and phase in the

forward direction to determine the extinction cross

section for the 2.5 GHz - 38 GHz frequency range

using the optical theorem. Forward RCS

measurements are technically complicated due to

that the direct signal has to be subtracted from the

total signal at the receiving antenna in order to

extract the forward RCS. The efficiency of this

subtraction as a function of time is evaluated. A

traditional calibration method using a calibration

target and a second method that does not require a

calibration target are investigated and compared.

The accuracy of the forward RCS measurements is

determined using small spheres of different sizes.

The spheres have a forward RCS that is straight

forward to calculate with good accuracy. The

method is also extended to polarimetric

measurements on a small helix that are compared

with method-of-moments calculations to validate

the method. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Bistatic, calibration, extinction cross section, forward RCS, measurement, method of moments, and polarimetry.
in
Applied Computational Electromagnetics Society Journal
volume
28
issue
12
pages
1145 - 1152
publisher
The Applied Computational Electromagnetics Society
external identifiers
  • wos:000340228500002
ISSN
1054-4887
language
English
LU publication?
yes
id
4505b35b-ff30-48da-9c68-1a3db1661f82 (old id 4351755)
alternative location
http://www.aces-society.org/search.php?vol=28&no=12&type=2
date added to LUP
2014-03-06 10:33:46
date last changed
2018-11-21 19:51:55
@article{4505b35b-ff30-48da-9c68-1a3db1661f82,
  abstract     = {This paper describes the development<br/><br>
of a method based on measurements of the radar<br/><br>
cross section (RCS) amplitude and phase in the<br/><br>
forward direction to determine the extinction cross<br/><br>
section for the 2.5 GHz - 38 GHz frequency range<br/><br>
using the optical theorem. Forward RCS<br/><br>
measurements are technically complicated due to<br/><br>
that the direct signal has to be subtracted from the<br/><br>
total signal at the receiving antenna in order to<br/><br>
extract the forward RCS. The efficiency of this<br/><br>
subtraction as a function of time is evaluated. A<br/><br>
traditional calibration method using a calibration<br/><br>
target and a second method that does not require a<br/><br>
calibration target are investigated and compared.<br/><br>
The accuracy of the forward RCS measurements is<br/><br>
determined using small spheres of different sizes.<br/><br>
The spheres have a forward RCS that is straight<br/><br>
forward to calculate with good accuracy. The<br/><br>
method is also extended to polarimetric<br/><br>
measurements on a small helix that are compared<br/><br>
with method-of-moments calculations to validate<br/><br>
the method.},
  author       = {Larsson, Christer and Gustafsson, Mats},
  issn         = {1054-4887},
  keyword      = {Bistatic,calibration,extinction cross section,forward RCS,measurement,method of moments,and polarimetry.},
  language     = {eng},
  number       = {12},
  pages        = {1145--1152},
  publisher    = {The Applied Computational Electromagnetics Society},
  series       = {Applied Computational Electromagnetics Society Journal},
  title        = {Wideband Measurements of the Forward RCS and the Extinction Cross Section},
  volume       = {28},
  year         = {2013},
}