From Event: SPIE Optical Engineering + Applications, 2017
The design of a Fraunhofer line optical correlator is detailed. The instrument described herein correlates a reflected solar
spectrum against multiple Fraunhofer absorption lines to estimate the radial velocity of the reflecting body. By using a
spatial light modulator (SLM) as a photomask for known solar absorption lines in the visible spectrum, the ratio of
Doppler shifted solar energy to the total received energy can be calculated. Although the reflected light from targets in
high orbit is weak, signal-to-noise ratio (SNR) is enhanced by the measurement of multiple Fraunhofer lines in a single
snapshot image. Simulations indicate that prediction of orbital parameters is improved by incorporation of this velocity
information, and in some cases the number of line-of-sight measurements can be reduced from three to two.
Brett A. Pantalone and Michael W. Kudenov, "Fraunhofer line optical correlator for improvement of initial orbit determination," Proc. SPIE 10407, Polarization Science and Remote Sensing VIII, 104070K (Presented at SPIE Optical Engineering + Applications: August 09, 2017; Published: 30 August 2017); https://doi.org/10.1117/12.2274804.
Conference Presentations are recordings of oral presentations given at SPIE conferences and published as part of the conference proceedings. They include the speaker's narration along with a video recording of the presentation slides and animations. Many conference presentations also include full-text papers. Search and browse our growing collection of more than 12,000 conference presentations, including many plenary and keynote presentations.