发明名称 Direction finding method and system using digital directional correlators
摘要 In an interferometer system, a revolving antenna array is used to sufficiently resolve all ambiguities in determination of frequency and direction of arrival of a wave-front. The frequency and direction of arrival are determined by matching predicted phase difference codes with an actual code measured at the antenna array, utilizing a cross-correlation technique. The number of parameters that can be simultaneously uniquely determined by the system depends on if the antenna array is rotated in planar or conical surfaces, and if the cross-correlation is uni- or multi-dimensional. The antenna array may include more than one baselines to enhance the system sensitivity and finding capacity.
申请公布号 US2005062647(A1) 申请公布日期 2005.03.24
申请号 US20030665057 申请日期 2003.09.22
申请人 NORTHROP GRUMMAN CORPORATION 发明人 MARKS MAURY I.
分类号 G01S3/48;G01S3/58;(IPC1-7):G01S5/02 主分类号 G01S3/48
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