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US 2023/0144558 A1Published application
Distributed radar system and method of operation thereof
AssigneeIsrael Aerospace Industries Ltd.
InventorsJoseph Hasson, Galya Goldner
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Abstract
Distributed radar systems and techniques for processing data received from such distributed radar systems. The distributed radar systems may utilize data on beam spatial pattern for processing collected signals and determining direction of one or more reflection origins (e.g., one or more objects reflecting transmitted signal).
Claims27
An antenna system, comprising:
- a plurality of antenna units arranged in a predetermined spaced apart arrangement in a selected region and configured to collectively transmit an output radiation signal having a known beam structure;
- a control system connected to the plurality of antenna units and configured for:
- transmitting operational instructions to said plurality of antenna units for transmitting radiation signals;
- receiving data indicative of collected radiation signals, collected in response to a reflection of the transmitted signal, and
- processing the data indicative of the collected radiation signals and determining at least data on an angular location of one or more objects associated with said collected radiation signals;
- wherein, a distance between the plurality of antenna units is larger than wavelength of signal transmitted or received by the antenna system;
- and
- wherein, said processing comprising, for at least one axis:
- applying a first mono-pulse beam processing characterized by a first angular shift, and determining relative location of said one or more objects with respect to internal features in received beam, and applying a second mono-pulse beam processing characterized by a second angular shift for determining location of said one or more objects with respect to said arrangement of plurality of antenna units.
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A control unit for use in distributed radar system, the control unit comprising:
- communication module configured for communicating with a plurality of antenna units for receiving input data indicative of collected radiation signal portions from said plurality of antenna units, said radiation signal portions being associated with reflected signal portions from one or more objects;
- at least one processor, said processor comprises a localization module adapted for processing said input data and determining location of one of more objects;
- said processing comprises for at least one axis:
- applying a first mono-pulse beam processing characterized by a first angular shift, and determining relative location of said one or more objects with respect to selected features of received beam by said plurality of antenna units, and applying a second mono-pulse beam processing characterized by a second angular shift for determining angular location of said one or more objects with respect to said arrangement of plurality of antenna units.
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A software product embedded in a computer readable medium and comprising computer instructions that when executed by one or more computer processor cause the processor to:
- providing data of spatial arrangement of a plurality of antenna units and beam structure associated therewith therefrom and determining one or more features of beam structure;
- providing input data collected from a plurality of antenna units and indicative on collected electromagnetic radiation signals associated with reflection of transmitted signal from one or more objects;
- processing the input data for determining location of said one or more objects with respect to said arrangement of a plurality of antenna units, said processing comprises:
- applying a first mono-pulse beam processing characterized by a first angular shift, and determining relative location of said one or more objects with respect to said one or more features of received beam structure, and
- applying a second mono-pulse beam processing characterized by a second angular shift for determining location of said one or more objects with respect to said arrangement of plurality of antenna units.
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Dependencies are inferred from the claim text.