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Proceedings Paper

Passive position-adaptive radar modes for non-LOS interrogation of embedded targets
Author(s): Atindra K. Mitra
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Paper Abstract

A position-adaptive radar system concept is presented for purposes of interrogating difficult and obscured targets via the application of low-altitude smart or robotic-type UAV platforms. Under this concept, a high-altitude radiating platform is denoted as a HUAV and a low-altitude “position-adaptive” platform is denoted as a LUAV. The system concept is described by two modes. In Mode-1, real-time onboard LUAV computation of a phase parameter denoted as “signal differential path length” allows the LUAV to position-adaptively isolate a “signal leakage point”, for example, between two buildings. After the LUAV position-adaptively converges to an optimum location, the system enters Mode-2. Under this Mode-2 concept, a technique denoted as “exploitation of leakage signals via path trajectory diversity” (E-LS-PTD) is developed. This technique is based on modulating scattering centers on embedded objects by implementing a fast trajectory on the HUAV while the LUAV is hovering in front of an “obscuration channel.” Analytical results include sample outputs from an initial set numerical electromagnetic simulations.

Paper Details

Date Published: 12 August 2004
PDF: 8 pages
Proc. SPIE 5410, Radar Sensor Technology VIII and Passive Millimeter-Wave Imaging Technology VII, (12 August 2004); doi: 10.1117/12.541065
Show Author Affiliations
Atindra K. Mitra, Air Force Research Lab. (United States)

Published in SPIE Proceedings Vol. 5410:
Radar Sensor Technology VIII and Passive Millimeter-Wave Imaging Technology VII
Robert Trebits; Roger Appleby; David A. Wikner; James L. Kurtz; Neil N. Salmon, Editor(s)

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