The Direction Cosine Method of Scatterer Location Extended to Spotlight-Mode IFSAR

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In this paper we have shown how the direction cosine method of stripmap-mode IFSAR maybe modified for use in the spotlight-mode case. Spotlight-mode IFSAR geometry dictates a common aperture phase center, velocity vector, and baseline vector for every pixel in an image. Angle with respect to the velocity vector is the same for every pixel in a given column and can be computed from the column index, the Doppler of the motion compensation point and the Doppler column sample spacing used in image formation. With these modifications, the direction cosines and length of the line of sight vector to every ... continued below

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4 p.

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EICHEL,PAUL H. October 26, 2000.

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  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM, and Livermore, CA
    Place of Publication: Albuquerque, New Mexico

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Description

In this paper we have shown how the direction cosine method of stripmap-mode IFSAR maybe modified for use in the spotlight-mode case. Spotlight-mode IFSAR geometry dictates a common aperture phase center, velocity vector, and baseline vector for every pixel in an image. Angle with respect to the velocity vector is the same for every pixel in a given column and can be computed from the column index, the Doppler of the motion compensation point and the Doppler column sample spacing used in image formation. With these modifications, the direction cosines and length of the line of sight vector to every scatterer in the scene may be computed directly from the raw radar measurements of range, Doppler, and interferometric phase.

Physical Description

4 p.

Notes

OSTI as DE00766558

Medium: P; Size: 4 pages

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  • 34th Asilomar Conference on Signals, Systems, and Computers, Pacific Grove, CA (US), 10/29/2000--11/01/2000

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  • Report No.: SAND2000-1316C
  • Grant Number: AC04-94AL85000
  • Office of Scientific & Technical Information Report Number: 766558
  • Archival Resource Key: ark:/67531/metadc717808

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  • October 26, 2000

Added to The UNT Digital Library

  • Sept. 29, 2015, 5:31 a.m.

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  • April 10, 2017, 7:51 p.m.

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EICHEL,PAUL H. The Direction Cosine Method of Scatterer Location Extended to Spotlight-Mode IFSAR, article, October 26, 2000; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc717808/: accessed September 24, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.