Abstract
We explore the feasibility of a new technique for visualization of the effects of turbulence in clear air [1]-[2], [4]-[5], based on some earlier ideas [10]. Sequences of short exposure images of a scene, such as the surface of the moon or a horizontally imaged scene on the earth, are captured using a 0.4 m diameter optical telescope. The field of view, typically 100 arc secs across, is wide compared to that of most astronomical observations [6]-[8], so that the main effect observed is a random “wobbling” within each image. With an exposure time of between 5 and 10 ms, the atmospheric wobble is “frozen” to provide a sequence of randomly warped images. The point spread function (PSF) for each image, due to the atmosphere and telescope, approximates a position-dependent randomly-displaced delta function (if we temporarily ignore instantaneous speckle and instrument blurring).
© 1998 Optical Society of America
PDF ArticleMore Like This
Andrew Lambert, Donald Fraser, Glen Thorpe, Mohammad Reza Sayyah Jahromi, David Clyde, James Webb, and Murat Tahtali
SMB4 Signal Recovery and Synthesis (SRS) 2001
Ian Scott-Fleming, Keith Hege, David Clyde, Donald Fraser, and Andrew Lambert
STuB3 Signal Recovery and Synthesis (SRS) 2001
David G. Voelz
HMA.2 Holography (Holography) 1996