M.S. Elshebani (Libya)
Radar, Beam Scanning Capability, Stationary AndMoving Clutter, Initialisation Technique, and ClutterRejection Processor.
Modern Air Traffic Control (ATC) radars, rely heavily on digital technology to ease controller workload, in identifying and tracking aircraft targets, in busy airport terminal areas. The task of this work, however, is to analyse two new type of processors, one of which can be used to suppress moving clutter and the other is designed to eliminate stationary clutter scenarios, existing in the vicinity of the radar system. This approach, however, will use a technique coined zero- initialisation, for the elimination of the stationary clutter, and non-zero initialisation techniques , for the suppression of the moving clutter types of scenarios. These two Clutter Rejection Processors (CRPs) were working in finite dwell time, as the case of the step-scan radar, with limited number of samples. The digital filter used with the CRP was stable, and it had a smooth pass-band frequency response, under the effect of the initialisation, to load the internal memories of the digital filter with one sample, to achieve stability. After the generation of the data clutter with respect to moving clutter (weather and angels), a database has been established. This database related to this type of clutter, was then processed progressively with the aid of CRP. The results of stationary clutter with the aid of CRP is also presented.
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