A Study of the Effects of Material Type and Configuration on Optical Cross Section

Kelly Feirstine (Schafer Corporation), J.D. Yarbrough (Schafer Corporation), James Rosprim (Schafer Corporation), Leslie Vaughn (Air Force Research Laboratory, Space Vehicles Directorate), Geoffrey Jenkins (Air Force Research Laboratory, Space Vehicles Directorate), Michael Duggin (Air Force Research Laboratory, Space Vehicles Directorate)

Keywords: SSA

Abstract:

An experiment was designed to study the effects of material type and configuration on Optical Cross Section (OCS) and spectrum. The experiment was conducted at an Air Force Research Laboratory (AFRL) far-field imaging facility, using different diffuse and specular materials and different configurations and/or combinations of each. It was hypothesized that the OCS of certain combinations of materials is dependent on the diffuseness or specularity of the materials used, but the spectrum is independent of these factors and does not change. The objective of the experiment is to capture both OCS and spectra of different material configurations using different combinations of diffuse and specular materials in the bi-static illumination condition. OCS was calculated relative to the scattering of a Spectralon material that was in the scene at all times. Results show the accurateness of the above hypothesis and illustrate other effects that material type and configuration have on OCS and spectra.

Date of Conference: September 11-14, 2012

Track: Poster

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