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Nearfield RCS Measurements of Full Scale Targets Using ISAR

Larsson, Christer LU (2014) 36th Annual Symposium of the Antenna Measurements Techniques Association In AMTA Proceedings p.79-84
Abstract
Nearfield Radar Cross Section (RCS) measurements

and Inverse Synthetic Aperture Radar (ISAR) processing are

used in this study to obtain geometrically correct images and

farfield RCS. The back projection algorithm is used to determine

the amplitudes and locations for the scatterers in a point by

point imaging process. Different approximations are used to sum

the nearfield RCS recorded at an azimuthal interval of angles

when forming the farfield image. The images obtained show

the geometrically correct locations of the target scatterers with

exceptions for some target features e.g., when there are multiple

or resonance scattering features. Separate... (More)
Nearfield Radar Cross Section (RCS) measurements

and Inverse Synthetic Aperture Radar (ISAR) processing are

used in this study to obtain geometrically correct images and

farfield RCS. The back projection algorithm is used to determine

the amplitudes and locations for the scatterers in a point by

point imaging process. Different approximations are used to sum

the nearfield RCS recorded at an azimuthal interval of angles

when forming the farfield image. The images obtained show

the geometrically correct locations of the target scatterers with

exceptions for some target features e.g., when there are multiple

or resonance scattering features. Separate features in the images

are gated and an inverse processing step is performed to obtain

the farfield RCS of the full target or selected parts of the target.

Examples of images and farfield RCS extracted from simulations

and measurements on small and full scale targets using the ISAR

processing techniques described in this paper are given. (Less)
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AMTA Proceedings
pages
6 pages
publisher
Antenna Measurement Techniques Association
conference name
36th Annual Symposium of the Antenna Measurements Techniques Association
language
English
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yes
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2fa02e8b-4af3-4572-b6cc-c9764db14b3f (old id 4730629)
date added to LUP
2014-10-27 14:41:15
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2016-04-16 08:19:56
@inproceedings{2fa02e8b-4af3-4572-b6cc-c9764db14b3f,
  abstract     = {Nearfield Radar Cross Section (RCS) measurements<br/><br>
and Inverse Synthetic Aperture Radar (ISAR) processing are<br/><br>
used in this study to obtain geometrically correct images and<br/><br>
farfield RCS. The back projection algorithm is used to determine<br/><br>
the amplitudes and locations for the scatterers in a point by<br/><br>
point imaging process. Different approximations are used to sum<br/><br>
the nearfield RCS recorded at an azimuthal interval of angles<br/><br>
when forming the farfield image. The images obtained show<br/><br>
the geometrically correct locations of the target scatterers with<br/><br>
exceptions for some target features e.g., when there are multiple<br/><br>
or resonance scattering features. Separate features in the images<br/><br>
are gated and an inverse processing step is performed to obtain<br/><br>
the farfield RCS of the full target or selected parts of the target.<br/><br>
Examples of images and farfield RCS extracted from simulations<br/><br>
and measurements on small and full scale targets using the ISAR<br/><br>
processing techniques described in this paper are given.},
  author       = {Larsson, Christer},
  booktitle    = {AMTA Proceedings},
  language     = {eng},
  pages        = {79--84},
  publisher    = {Antenna Measurement Techniques Association},
  title        = {Nearfield RCS Measurements of Full Scale Targets Using ISAR},
  year         = {2014},
}