Active Multispectral Band Selection and Reflectance Measurement System
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Due to system design requirements, an active multispectral laser radar system may be limited in the number of spectral bands that can be integrated into the system. To aid in the selection of these bands, a novel multispectral band selection technique is presented based on the cross-correlation of the material class reectance spectra over a wavelength range of 1_m { 5_m. The algorithm uses directional hemispherical reectance data from the Nonconventional Exploitation Factors database to select a number of spectral bands for classication purposes. Because the target material spectral reectance ...
Due to system design requirements, an active multispectral laser radar system may be limited in the number of spectral bands that can be integrated into the system. To aid in the selection of these bands, a novel multispectral band selection technique is presented based on the cross-correlation of the material class reectance spectra over a wavelength range of 1_m { 5_m. The algorithm uses directional hemispherical reectance data from the Nonconventional Exploitation Factors database to select a number of spectral bands for classication purposes. Because the target material spectral reectance is so important to the performance of an active multispectral system, an experimental monostatic bidirectional reectance distribution function (BRDF) measurement system is developed and tested. A 1.06_m Nd:YAG diode pumped laser is frequency shifted to 1.58_m { 1.80_m using a periodically poled lithium niobate nonlinear crystal.
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