Computer Science – Performance
Scientific paper
Sep 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990spie.1304...58c&link_type=abstract
IN: Acquisition, tracking, and pointing IV; Proceedings of the Meeting, Orlando, FL, Apr. 19, 20, 1990 (A91-36851 15-35). Bellin
Computer Science
Performance
Ccd Star Tracker, Satellite Attitude Control, Space Platforms, Spacecraft Instruments, Spacecraft Stability, Computer Techniques, High Resolution, Instrument Errors, Temperature Control
Scientific paper
During the last 10 years the need for a new generation of star trackers emerged as the requirements for space platform attitude control became more stringent. The Advanced Star Tracker (ASTRA) combines the high sensitivity and resolution inherent in a modern CCD detector with the versatile processing capability of a 16-bit microprocessor to achieve a level of performance surpassing existing trackers. In this paper, star tracker error sources and the design and calibration techniques utilized in ASTRA to eliminate or minimize those errors are explored. An error tree presents high and low special frequency centroiding error sources and their influence on the tracker's design. Requirements for thermal control of the detector and for optical calibration are discussed along with an overview of the data processing function. Finally, hardware test results are presented that demonstrate a significant improvement in accuracy and sensitivity relative to existing tube-type trackers.
Abreu Rene
Cassidy Lawrence W.
No associations
LandOfFree
Star trackers for spacecraft applications does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Star trackers for spacecraft applications, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Star trackers for spacecraft applications will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1557958