Generalized energy-aperture product limit for multi-beam and spotlight SARs

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Description

The SAR energy-aperture product limit is extended to multi-beam SARS, Spotlight and moving spotlight SARS. This fundamental limit bounds the tradeoff between energy and antenna size. The kinematic relations between design variables such as platform speed, pulse repetition frequency, beam width and area rate are analyzed in a unified framework applicable to a wide variety of SARs including strip maps, spotlights, vermer arrays and multi-beam SARS, both scanning and swept-beam. Then the energy-aperture product limit is derived from the signal-to noise requirement and the kinematic constraints. The derivation clarifies impact of multiple beams and spotlighting on SAR performance.

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7 p.

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Karr, T.J. December 21, 1995.

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Description

The SAR energy-aperture product limit is extended to multi-beam SARS, Spotlight and moving spotlight SARS. This fundamental limit bounds the tradeoff between energy and antenna size. The kinematic relations between design variables such as platform speed, pulse repetition frequency, beam width and area rate are analyzed in a unified framework applicable to a wide variety of SARs including strip maps, spotlights, vermer arrays and multi-beam SARS, both scanning and swept-beam. Then the energy-aperture product limit is derived from the signal-to noise requirement and the kinematic constraints. The derivation clarifies impact of multiple beams and spotlighting on SAR performance.

Physical Description

7 p.

Notes

OSTI as DE96009818

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  • Other Information: PBD: 21 Dec 1995

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  • Other: DE96009818
  • Report No.: UCRL-ID--123065
  • Grant Number: W-7405-ENG-48
  • DOI: 10.2172/221054 | External Link
  • Office of Scientific & Technical Information Report Number: 221054
  • Archival Resource Key: ark:/67531/metadc672603

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Office of Scientific & Technical Information Technical Reports

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  • December 21, 1995

Added to The UNT Digital Library

  • June 29, 2015, 9:42 p.m.

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  • Feb. 16, 2016, 7:24 p.m.

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Karr, T.J. Generalized energy-aperture product limit for multi-beam and spotlight SARs, report, December 21, 1995; California. (digital.library.unt.edu/ark:/67531/metadc672603/: accessed December 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.