HYDICE system: implementation and performance

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Abstract
This paper presents an overview of the HYDICE hyperspectral system, sponsored by the Naval Research Laboratory, built by Hughes Danbury Optical Systems and flown by the Environmental Research Institute of Michigan. HYDICE stands for the Hyperspectral Digital Imagery Collection Experiment. The sensor component of this experiment was procured as a dual use initiative. This unique sensor has pushbroom imaging optics with a prism spectrometer and InSb focal plane array detector. It represents a significant advance in signal- to-noise ratio, spatial and spectral resolution, and radiometric accuracy. This paper describes the system that has been built and flight tested. Differences between the original design and the actual hardware are indicated. The integration of the sensor with the aircraft is explained, including an overview of other on-board capabilities. The way in which the sensor system can be operated is illustrated. Flight test data are currently being analyzed, but selected laboratory performance tests are shown. The overall system flight performance is assessed qualitatively, with reference to laboratory data.

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