Computer Science – Performance
Scientific paper
Aug 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005esabu.123...40t&link_type=abstract
ESA Bulletin (ISSN 0376-4265), No. 123, p. 40 - 45 (2005)
Computer Science
Performance
Space Missions, Earth Observations
Scientific paper
The cameras commonly used for Earth observation from satellites require high attitude stability during the image acquisition. For some types of cameras (high-resolution "pushbroom" scanners in particular), instantaneous attitude changes of even less than one arcsecond result in significant image distortion and blurring. Especially problematic are the effects of high-frequency attitude variations originating from micro-shocks and vibrations produced by the momentum and reaction wheels, mechanically activated coolers, and steering and deployment mechanisms on board. The resulting high attitude-stability requirements for Earth-observation satellites are one of the main reasons for their complexity and high cost. The novel SmartScan imaging concept, based on an opto-electronic system with no moving parts, offers the promise of high-quality imaging with only moderate satellite attitude stability. SmartScan uses real-time recording of the actual image motion in the focal plane of the camera during frame acquisition to correct the distortions in the image. Exceptional real-time performances with subpixel-accuracy image-motion measurement are provided by an innovative high-speed onboard opto-electronic correlation processor. SmartScan will therefore allow pushbroom scanners to be used for hyper-spectral imaging from satellites and other space platforms not primarily intended for imaging missions, such as micro- and nano-satellites with simplified attitude control, low-orbiting communications satellites, and manned space stations.
Dyblenko Sergej
Harnisch Bernd
Janschek Klaus
Seifart Klaus
Tchernykh Valerij
No associations
LandOfFree
Clever imaging with SmartScan 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 Clever imaging with SmartScan, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Clever imaging with SmartScan will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-953447