Abstract:
Reticle systems, which are widely used in IR seekers, are considered to be a classical
approach for estimating the target position within the specified field of view. In this
thesis, a thorough study has been made and various approaches for target localization
for a simple wagon wheel reticle have been explored. For target detection, a
conventional PLL-approach and a relatively new adaptive DSP algorithm for
enhanced performance were tested. However, for increased efficiency, a new
technique based on the reticle geometry and scan profiles is proposed. Furthermore to
solve the problems such as loss of modulation rosette, scanning has been used. It is
used to construct the image of the scene and hence provides an opening for the
various imaging techniques, which can then be used to find the target, track it and to
segregate it from the flares and other such decoys.
