Abstract: At least one embodiment of the present invention includes an antenna system comprising a multifocal reflector having at least two reflecting segments having different curvatures defining at least two different spaced apart focal points, such that the multifocal reflector is configured and operable to receive radiation incident on the segments at different incident angles within a certain angular range, and reflect the incident radiation onto the at least two focal points in a focal axis, thereby creating focused radiation formed by at least two differently focused portions of radiation; a phased array feed antenna unit located perpendicularly to the focal axis and comprising a plurality of antenna elements for receiving/transmitting at least two differently focused portions, and a feed network connected to the plurality of the antenna elements for selectively actuating the antenna elements for performing electronic scanning of the space area aimed at detecting target.

Abstract: At least one embodiment of the present invention includes an antenna system comprising a multifocal reflector having at least two reflecting segments having different curvatures defining at least two different spaced apart focal points, such that the multifocal reflector is configured and operable to receive radiation incident on the segments at different incident angles within a certain angular range, and reflect the incident radiation onto the at least two focal points in a focal axis, thereby creating focused radiation formed by at least two differently focused portions of radiation; a phased array feed antenna unit located perpendicularly to the focal axis and comprising a plurality of antenna elements for receiving/transmitting at least two differently focused portions, and a feed network connected to the plurality of the antenna elements for selectively actuating the antenna elements for performing electronic scanning of the space area aimed at detecting target.

Abstract: A computerized system for monitoring physical data for anomalies, which physical data are predictable given predetermined information, the system comprising a predetermined information data point generator operative to compute a sequence of model data points which the physical data, given predetermined information, can be expected to duplicate at each of a corresponding sequence of temporal sampling points; a wayward point monitor including a processor operative for monitoring the physical data including identifying wayward points within said physical data that are incongruous with the predetermined information; and an anomalous episode-prompted alarm generator operative for identifying anomalous episodes, each including a cluster of wayward points satisfying predefined anomalous episode-defining criteria and generating an alarm for each anomalous episode identified.

Abstract: A computerized system for monitoring physical data for anomalies, which physical data are predictable given predetermined information, the system comprising a predetermined information data point generator operative to compute a sequence of model data points which the physical data, given predetermined information, can be expected to duplicate at each of a corresponding sequence of temporal sampling points; a wayward point monitor including a processor operative for monitoring the physical data including identifying wayward points within said physical data that are incongruous with the predetermined information; and an anomalous episode-prompted alarm generator operative for identifying anomalous episodes, each including a cluster of wayward points satisfying predefined anomalous episode-defining criteria and generating an alarm for each anomalous episode identified.