Optical-radar imaging of scale models for studies in asteroid astronomy

Details Optical-radar imaging of scale models for studies in asteroid astronomy Optical-radar imaging of scale models for studies in asteroid astronomy

Nov 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995optl...20.2327a&link_type=abstract

Optics Letters, Volume 20, Issue 22, November 15, 1995, pp.2327-2329

Astronomy and Astrophysics

Astronomy

4

Three Dimensions, Imaging, Astronomy

Scientific paper

During the past five years, delay-Doppler radar has become the primary technique for studying the structure of Earth-crossing asteroids. None of these objects has yet been visited by spacecraft, so ground-truth test cases are lacking. A laboratory system is described that provides optical-radar images at 0.1-mm resolution. These data are analogous to the highest-resolution asteroid radar images currently available and provided realistic test cases for developing signal-processing techniques. The system can be thought of as a 1/188,000 scale model of the Arecibo radar, or a 1/52,800 scale model of the Goldstone radar.

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