Lägesbildsunderlag inför insatser i urban miljö

Authors:

  • Tomas Chevalier
  • Marie Andersson
  • Anders Gustavsson
  • Johan Rasmusson

Publish date: 2008-01-09

Report number: FOI-R--2385--SE

Pages: 68

Written in: Swedish

Keywords:

  • Situational picture
  • urban environment
  • sensors
  • laser
  • EO
  • radar
  • satellite
  • mapping

Abstract

The ability to establish a situational picture is depending on available sensors and level of premonition. This report describes the possibilities to use sensors to establish a situational picture to support operations in a urban environment. The report covers the background part of the situational picture. This background can consist of topography, geometry, material and function of buildnings and is a base that can be enhanced with dynamic data, which faster become inaccurate. First is an overview of commercially available sensor abilities to acquire background information, for instance satellites and aircraft carried lasersystems. A separate section describes bi- and monostatic SAR for mapping of inner structures of buildnings. These section is used to discuss about the use of the situational picture on different military levels and phases of the operation. These phases are planning, advancing, and mapping a building. An appendix describes the principles of Synthetic aperture radar (SAR).  Level 1, planning: Small amount of data. Overview of a region with coastline, infrastructure, and mountains. The information is reliable for a long time and can be three dimensional.  Level 2, advancing: This level covers building blocks, indivual buildings and perhaps road blocks. The reliability in data is decreasing faster compared to the higher level.  Level 3, mapping a building: Detailed information of the outer and the inner of a buildning is known. Larger amount of data is required and the data is faster becoming unreliable.

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