发明名称 |
All digital phased array using space/time cascaded processing |
摘要 |
The invention concerns a method and apparatus for cascaded processing of signals in a phased array antenna system in which a plurality of antenna elements are configured as a plurality of sub-arrays. A weighting factor is applied to each of the antenna elements to form a plurality of sub-array beams, each pointed in a selected direction. For each sub-array, an output from each the antenna elements in the sub-array can be combined to produce a sub-array output signal. The sub-array output signals are selectively weighted and combined in a fully adaptive process. Subsequently, the system can estimate an angle-of-arrival direction for a signal-of-interest ("SOI") and at least one signal-not-of-interest ("SNOI"). Based on this estimating step, the system calculates a new set of weighting factors for controlling one or more of the sub-array beams to improve the signal-to-noise plus interference ratio obtained for the SOI in the array output signal.
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申请公布号 |
US2003206132(A1) |
申请公布日期 |
2003.11.06 |
申请号 |
US20020136673 |
申请日期 |
2002.05.01 |
申请人 |
PHELAN H. RICHARD;GOLDSTEIN MARK L.;MARTIN G. PATRICK;NINK RICHARD J. |
发明人 |
PHELAN H. RICHARD;GOLDSTEIN MARK L.;MARTIN G. PATRICK;NINK RICHARD J. |
分类号 |
G01S3/74;G01S7/28;H01Q3/26;H01Q3/30;(IPC1-7):G01S13/66 |
主分类号 |
G01S3/74 |
代理机构 |
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地址 |
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