NASA Technical Reports Server (NTRS) : Problems pdf

NASA Technical Reports Server (NTRS) : Problems

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Description of the Book:

The field of radiometry is surveyed with reference to coherent light, since the surfaces to be considered here are irradiated with coherent, polarized light. Definitions of some concepts are modified. In light of these modifications calibration problems are analyzed and solutions suggested. The most important task was to develop hard targets exhibiting minimal specular reflection (mirror-like and retroreflection) and following closely a Lambertian scattering curve. Bistable reflectometer experiments and integrating sphere measurements are used to physically characterize the targets. Optical and electron microscopy are used to physically characterize the targets. Since the BRDF matrix is not measured, this capability must be developed preferably for both bistatic and monostatic reflectometer measurements. The equipment is expensive and not yet developed. Calibration can be simplified if it can be proved that the BRDF matrix is diagonal for a diffuse scatterer

• Creator/s: NASA Technical Reports Server (NTRS
• Date: 11/1/1987
• Year: 1987
• Book Topics/Themes: NASA Technical Reports Server (NTRS), CALIBRATING, COHERENT LIGHT, DOPPLER RADAR, OPTICAL RADAR, TARGET ACQUISITION, ELECTRON MICROSCOPY, POLARIZED LIGHT, REFLECTOMETERS, SPECULAR REFLECTION, TARGET RECOGNITION, Anderson, Richard

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