Passive position-adaptive radar modes for non-LOS interrogation of embedded targets

Atindra K. Mitra

doi:10.1117/12.541065

12 August 2004 Passive position-adaptive radar modes for non-LOS interrogation of embedded targets

Atindra K. Mitra

Proceedings Volume 5410, Radar Sensor Technology VIII and Passive Millimeter-Wave Imaging Technology VII; (2004) https://doi.org/10.1117/12.541065
Event: Defense and Security, 2004, Orlando, Florida, United States

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.

Citation Download Citation

Atindra K. Mitra "Passive position-adaptive radar modes for non-LOS interrogation of embedded targets", Proc. SPIE 5410, Radar Sensor Technology VIII and Passive Millimeter-Wave Imaging Technology VII, (12 August 2004); https://doi.org/10.1117/12.541065

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