Theoretical and Applied Optics

Wisard
Optical Interferometric Data Processing Code
 

	True object		100m-diameter telescope image
	Reconstruction (L2)		Reconstruction (L1-L2)

 
Optical interferometry allows one to reach the resolution of a "large" telescope by coupling several smaller ones. However, this method does not provide images, but interferometric observables, from which a suited algorithm has to reconstruct an image. Wisard, developped at ONERA, is such an algorithm. It has been validated on simulations (cf. figures) and successfully compared to other methods.

Frequency coverage
(max baseline = 66m)

Publications

• S. Meimon. Reconstruction d'images astronomiques en interférométrie optique.
  Thèse de Doctorat, Université Paris Sud, 2005.
• S. Meimon, L. M. Mugnier, et G. Le Besnerais. Reconstruction method for weak-phase optical interferometry. Opt. Lett., 30(14):1809-1811, juillet 2005.
• S. Meimon, L. M. Mugnier, et Guy Le Besnerais. A convex approximation of the likelihood in optical interferometry. J. Opt. Soc. Am. A, novembre 2005.

Last Update: 27 November 2006 - © ONERA 2009 - Terms of use