P-3 ultrawideband SAR

Dan R. Sheen; Terry B. Lewis

doi:10.1117/12.243084

17 June 1996 P-3 ultrawideband SAR

Dan R. Sheen, Terry B. Lewis

Proceedings Volume 2747, Radar Sensor Technology; (1996) https://doi.org/10.1117/12.243084
Event: Aerospace/Defense Sensing and Controls, 1996, Orlando, FL, United States

Abstract

The P-3 UHF-UWB system offers a unique capability for remote sensing of forest regions because the low-frequency waveform penetrates foliage and the time resolution allows imaging of individual tree trunks. A tree trunk combined with the ground under it forms a dielectric top hat reflector which is a dominant scattering mechanism. The scatter from the ground-trunk interface is strongly dependent on polarization with Horizontal incidence-Horizontal reflection typically being much stronger than Vertical incidence-Vertical reflections. The cross-polarized components of the scatter is typically much weaker; however, heavily sloped terrain can cause a polarization rotation upon reflection which can cause significant cross-polarization. Estimates of the cross-polarized image can therefore be used to determine terrain characteristics.

Citation Download Citation

Dan R. Sheen and Terry B. Lewis "P-3 ultrawideband SAR", Proc. SPIE 2747, Radar Sensor Technology, (17 June 1996); https://doi.org/10.1117/12.243084

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