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The HYDICE instrument design and its application to planetary instrumentsThe Hyperspectral Digital Imagery Collection Experiment (HYDICE) instrument represents a significant advance in the state of the art in hyperspectral sensors. It combines a higher signal-to-noise ratio (SNR) and significantly better spatial and spectral resolution and radio metric accuracy than systems flying on aircraft today. The need for 'clean' data, i.e., data free of sampling artifacts and excessive spatial or spectral noise, is a key driver behind the difficult combination of performance requirements laid out for HYDICE. Most of these involve the sensor optics and detector. This paper presents an optimized approach to those requirements, one that comprises push broom scanning, a single, mechanically cooled focal plane, a double-pass prism spectrometer, and an easily fabricated yet wide-field telescope. Central to the approach is a detector array that covers the entire spectrum from 0.4 to 2.5 microns. Among the major benefits conferred by such a design are optical and mechanical simplicity, low polarization sensitivity, and coverage of the entire spectrum without suffering the spectral gaps caused by beam splitters. The overall system minimizes interfaces to the C-141 aircraft on which it will be flown, can be calibrated on the ground and in flight to accuracies better than those required, and is designed for simple, push-button operation. Only unprocessed data are recorded during flight. A ground data processing station provides quick-look, calibration correction, and archiving capabilities, with a throughput better than the requirements. Overall performance of the system is expected to provide the solid database required to evaluate the potential of hyperspectral imagery in a wide variety of applications. HYDICE can be regarded as a test bed for future planetary instruments. The ability to spectrally image a wide field of view over multiple spectral octaves offers obvious advantages and is expected to maximize science return for the required cost and weight.
Document ID
19930019577
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Basedow, R.
(Hughes Danbury Optical Systems Inc., CT, United States)
Silverglate, P.
(Hughes Danbury Optical Systems Inc., CT, United States)
Rappoport, W.
(Hughes Danbury Optical Systems Inc., CT, United States)
Rockwell, R.
(Hughes Danbury Optical Systems Inc., CT, United States)
Rosenberg, D.
(Hughes Danbury Optical Systems Inc., CT, United States)
Shu, K.
(Hughes Danbury Optical Systems Inc., CT, United States)
Whittlesey, R.
(Hughes Danbury Optical Systems Inc., CT, United States)
Zalewski, E.
(Hughes Danbury Optical Systems Inc., CT, United States)
Date Acquired
September 6, 2013
Publication Date
January 1, 1993
Publication Information
Publication: Lunar and Planetary Inst., Workshop on Advanced Technologies for Planetary Instruments, Part 1
Subject Category
Instrumentation And Photography
Accession Number
93N28766
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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