An Optical Technique for Simultaneous Beamforming and Cross-Correlation |
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Authors: | Beste David C Leith Emmett N |
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Institution: | Hughes Aircraft Co. Fullerton, Calif.; |
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Abstract: | This paper presents a method of greatly simplifying the processing of received signals from antenna arrays through the use of a coherent optical system for signal processing. It is shown that a coherent optical system is ideally suited for carrying out beamforming operations. Several other advantages of coherent optics for this application are also discussed. A major result is a technique for forming several unambiguous beams simultaneously by correlating the signals from two linear arrays. The coherent optics technique permits this operation to be carried out with extreme simplicity. |
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