Mathematics – Logic
Scientific paper
Jun 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997spie.3086...54e&link_type=abstract
Proc. SPIE Vol. 3086, p. 54-60, Acquisition, Tracking, and Pointing XI, Michael K. Masten; Larry A. Stockum; Eds.
Mathematics
Logic
Scientific paper
Science and Technology International (STI) has developed an integrated navigation and stabilization system for the Advanced Airborne Hyperspectral Imaging System (AAHIS). The sensor itself operates as a pushbroom imager, covering the wavelengths range from 435 nm to 830 nm with a ground resolution of 0.2 m2 per pixel and a spectral resolution of 182 channels. The system was designed for remote sensing applications utilizing small aircraft. A dGPS navigation system was developed which provides the user with a reliable computer interface for convenient mission planning and monitoring. All data acquisition functions are integrated and require little or no user input. The compact stabilization system consists of two mirrors on a rotation stage mounted in the optical path of the sensor. The navigation and stabilization CPU acquires position data from the differential GPS receiver, as well as attitude data from an inertial navigation system which measures linear and rotational motions. These movements are translated into real-time signals for the mirrors and the rotation stages, correcting for aircraft pitch, yaw and roll and off-track errors. The dGPS data are recorded and later merged with the hyperspectral data which can then be geo-registered and incorporated in a GIS map. The paper will present the approach that was taken to develop a compact stabilization system for hyperspectral imaging in less than 2 MY using off the shelf industrial components. It will quantify the benefit of the chosen approach over other forms of stabilization or no stabilization and discuss the technological and economic benefits for airborne remote sensing missions.
Even Detlev M.
Fala Joe
Johnson Carole
Mooradian Gregory C.
Portigal Frederick P.
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