SPECTRAL ESTIMATION AND RESOLUTION OF CLOSELY SPACED RADAR TARGET SCATTERERS

Substantial research has been performed on radar-range resolution and its implication on range resolution of point targets. This applies to both radar and optical image processing systems. A method for modellin g point targets that may constitute scattering centres of an object is considered. In addition, a target-detection and estimation algorithm to enhance down-range resolution of multiple targets, through efficien t processing of the output of the matched filter of a pulse-modulated carrier radar receiver is illustrated. The amplitude and time of arriv al associated with a target scatterer are detected and estimated in no ise-free and noisy environments. These parameters can be considered as a part of a radar-target feature vector of minimal dimension, that co uld be utilized in radar target identification processes.