Superresolution based on the use of deterministic physical modelling

The author describes an algorithm, based on deterministic modeling, which is called the correlation height analysis (CHA) technique. The algorithm has been designed for radar tracking of low-angle targets over the ocean. In this algorithm the author uses a low-angle model to generate radar data corresponding to a series of potential target heights. An ensemble of radar signatures that correspond to the potential target heights is derived. The author then correlates the simulated data with the radar data and looks for peaks in the cross-correlation function. A series of peaks is obtained. One of these corresponds to the actual target height and the remainder correspond to alias target heights. The alias peaks are analogous to the lobes of an interferometer. The true track is selected from the ensemble of tracks by introducing a perturbation mechanism into the algorithm