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Nearfield RCS Measurements of Full Scale Targets Using ISAR

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Author

Summary, in English

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.

Publishing year

2014

Language

English

Pages

79-84

Publication/Series

AMTA Proceedings

Document type

Conference paper

Publisher

Antenna Measurement Techniques Association

Topic

  • Electrical Engineering, Electronic Engineering, Information Engineering

Conference name

36th Annual Symposium of the Antenna Measurements Techniques Association

Conference date

2014-10-12

Conference place

Tucson, Arizona, United States

Status

Published

Research group

  • Electromagnetic theory