Approximation of the bistatic slant range using Chebyshev polynomials

Research output: Contribution to journalLetter

15 Citations (Scopus)

Abstract

The effectiveness of frequency domain processing algorithms in bistatic synthetic aperture radar (SAR) focusing depends critically on the accuracy of the bistatic slant range function approximation. This letter presents a new Chebyshev slant range function approximation that is shown to increase the accuracy of the analytical approximation of the bistatic point target spectrum. The performance of the new method is compared to the conventional Taylor series approximation approach in the generation of the point target spectrum. The new approach is shown to provide a more accurate approximation of the slant range function with negligible increase in processing requirements compared to the traditional Taylor series approximation. The accuracy improvement is shown to yield a more accurate spectrum that can be exploited in bistatic SAR focusing algorithms.

LanguageEnglish
Pages682-686
Number of pages5
JournalIEEE Geoscience and Remote Sensing Letters
Volume9
Issue number4
DOIs
Publication statusPublished - 1 Jul 2012

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Taylor series
Polynomials
Synthetic aperture radar
synthetic aperture radar
Processing
method

Keywords

  • Chebyshev polynomials
  • bistatic slant range
  • remote sensing

Cite this

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title = "Approximation of the bistatic slant range using Chebyshev polynomials",
abstract = "The effectiveness of frequency domain processing algorithms in bistatic synthetic aperture radar (SAR) focusing depends critically on the accuracy of the bistatic slant range function approximation. This letter presents a new Chebyshev slant range function approximation that is shown to increase the accuracy of the analytical approximation of the bistatic point target spectrum. The performance of the new method is compared to the conventional Taylor series approximation approach in the generation of the point target spectrum. The new approach is shown to provide a more accurate approximation of the slant range function with negligible increase in processing requirements compared to the traditional Taylor series approximation. The accuracy improvement is shown to yield a more accurate spectrum that can be exploited in bistatic SAR focusing algorithms.",
keywords = "Chebyshev polynomials , bistatic slant range , remote sensing",
author = "Carmine Clemente and John Soraghan",
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Approximation of the bistatic slant range using Chebyshev polynomials. / Clemente, Carmine; Soraghan, John.

In: IEEE Geoscience and Remote Sensing Letters, Vol. 9, No. 4, 01.07.2012, p. 682-686.

Research output: Contribution to journalLetter

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AU - Soraghan, John

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N2 - The effectiveness of frequency domain processing algorithms in bistatic synthetic aperture radar (SAR) focusing depends critically on the accuracy of the bistatic slant range function approximation. This letter presents a new Chebyshev slant range function approximation that is shown to increase the accuracy of the analytical approximation of the bistatic point target spectrum. The performance of the new method is compared to the conventional Taylor series approximation approach in the generation of the point target spectrum. The new approach is shown to provide a more accurate approximation of the slant range function with negligible increase in processing requirements compared to the traditional Taylor series approximation. The accuracy improvement is shown to yield a more accurate spectrum that can be exploited in bistatic SAR focusing algorithms.

AB - The effectiveness of frequency domain processing algorithms in bistatic synthetic aperture radar (SAR) focusing depends critically on the accuracy of the bistatic slant range function approximation. This letter presents a new Chebyshev slant range function approximation that is shown to increase the accuracy of the analytical approximation of the bistatic point target spectrum. The performance of the new method is compared to the conventional Taylor series approximation approach in the generation of the point target spectrum. The new approach is shown to provide a more accurate approximation of the slant range function with negligible increase in processing requirements compared to the traditional Taylor series approximation. The accuracy improvement is shown to yield a more accurate spectrum that can be exploited in bistatic SAR focusing algorithms.

KW - Chebyshev polynomials

KW - bistatic slant range

KW - remote sensing

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