2-6 September 2013
STIAS Conference Centre
Africa/Johannesburg timezone

Adaptive Optics for Horizontal Propagation Applications

5 Sep 2013, 16:30
STIAS Conference Centre

STIAS Conference Centre

Stellenbosch Institute for Advanced Study Wallenberg Research Centre 10 Marais Road Stellenbosch South Africa www.stias.ac.za


Dr Sergio Restaino (Naval Research Laboratory, Remote Sensing Division)

Abstract content <br>(Max 300 words)<br><a href="http://indico.saip.org.za/getFile.py/access?resId=0&materialId=2&confId=28" target="_blank">Special Chars</a>

Adaptive Optics (AO) is a well proven technology for imaging systems used for astronomical and Space Surveillance applications. However, the application of these proven techniques to horizontal path imagery is not straightforward, and so far has not been investigated for imaging systems. There are two major problems with extending AO systems for vertical imaging systems to horizontal imaging regime. First, the optical effects of atmospheric turbulence are far more severe for horizontal than for vertical paths. Furthermore, there is now growing experimental evidence that in the horizontal regime the usual wavelength scaling of the strength of turbulence does not hold. This is readily apparent from observing the slight effect of twinkling of stars compared to the pronounced shimmering of objects when viewed across a hot pavement. . Second, horizontal imaging systems generally involve viewing extended sources over relatively large fields of view. Currently no wavefront sensing schemes exist for this application. Primarily for these reasons, the development of an AO system for horizontal imaging systems remains an important unsolved DoD problem. In this paper we will present results and analysis related to our horizontal path imaging and correction effort.

Primary author

Dr Sergio Restaino (Naval Research Laboratory, Remote Sensing Division)


Dr Jonathan Andrews (Naval Research Laboratory, Remote Sensing Division) Dr Ty Martinez (Naval Research Laboratory, Remote Sensing Division) Dr Wilcox Christopher (Naval Research Laboratory, Remote Sensing Division)

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