ISSSR '97 PAPER A Spectro-Polarimetric Imager for Scene Discrimination

We have assembled a wide spectral range, allelectronicspectro-polarimetric imager utilizing anacousto-optic tunable filter (AOTF), a liquid crystalvariable retardation plate, and real-time, softwareadaptablesignature masks. This combination ofrapidly adjustable parameters allows operation at30/sec. frame rate, and near real time adaptability tochanging target signatures. The spectral capability ofthe AOTF permits us to apply simultaneous, multiplewavelength filtering which greatly...