Physics – Optics
Scientific paper
Oct 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988itap...36.1343l&link_type=abstract
IEEE Transactions on Antennas and Propagation (ISSN 0018-926X), vol. 36, Oct. 1988, p. 1343-1350.
Physics
Optics
1
Antenna Design, Cassegrain Optics, Error Analysis, Radio Telescopes, Reflector Antennas, Least Squares Method, Ray Tracing, Software Tools
Scientific paper
The subreflector presented is built of an aggregate of rigid panels, which are controlled by a small number of actuators. An algorithm is described to calculate the actuator motions for a set of given surface distortions. It is assumed that the surface distortions, at different elevation angles, are known a priori. Geometrical optics is used to describe the aperture field distribution and to predict the improvement in performance. Computer modeling of main and subreflectors was used to test the design. This design is suggested for the improvement of a hypothetical radio telescope. In this example, it is predicted that the effective surface errors, due to gravitational distortions, may be reduced to 33 percent of their uncorrected level with a 48-plate subreflector. Compensation with other subreflector configurations is also investigated.
Lawson Peter R.
Yen Jui Lin
No associations
LandOfFree
A piecewise deformable subreflector for compensation of Cassegrain main reflector errors 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 A piecewise deformable subreflector for compensation of Cassegrain main reflector errors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A piecewise deformable subreflector for compensation of Cassegrain main reflector errors will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1599143