A new high-resolution radio spectropolarimeter instrument operating in the frequency range
of 15–85 MHz has recently been commissioned at the Radio Astronomy Field Station of the …

Speckle Imaging based on triple correlation is a very efficient image reconstruction
technique which is used to retrieve Fourier phase information of the object in presence of …

A new optical speckle interferometer for use at the 2.34 meter Vainu Bappu Telescope
(VBT), at Vainu Bappu Observatory (VBO), Kavalur, India, has been designed and …

The speckle imaging is a photographic technique that resolves objects viewed through
severely distorted media. The results are insensitive to the errors caused by apparent size of …

We have presented the basic mathematical treatment of interferometry in the optical domain.
Its applications in astronomical observations using both the single aperture, as well as the …

Optical interferometry with single aperture, as well as with multi-aperture require high quality
sensor that enables to obtain snap shots with a very fast time resolution of the order of (i) …

This article begins with the discussions on the formation of speckles in the case of non-
coherent quasi monochromatic source and of ways to detect them. Prior to this, a brief …