Iterative algorithm to improve the separating power on coded-aperture images.
A hard x-ray/medium energy gamma-ray telescope is being developed using coded-aperture imaging. The image recorded on the detector has to be cross correlated to deconvolve the sky map. This map suffers from blurring due to the spatial resolution of the position sensitive detector and to the simple point spread function of the cross-correlation method. We have developed and tested an iterative method which improves the separating power of the reconstructed maps. The results and limits of the method are discussed.
Laudet
P
P
Roques
J P
JP