发明名称 |
SURVEILLANCE APPARATUS AND METHOD |
摘要 |
A surveillance apparatus (100) is provided, said apparatus including a linear sub-array (101) of N omnidirectional transmitter elements (103) and a planar sub-array (102) of M receiver elements (104). A plurality of the transient elements (105) are generated by separating out at each of the receivers (104) the signals transmitted from the antenna elements (103) of the transmitter sub-array (101). This allows the geometry of each path (from each transmitter antenna element, to the point being imaged and back to the receiver antenna elements) to be converted to a delay or phase shift to focus on the particular point being imaged. The transient elements (105) form a cylindrical array (106) at the mid points between transmitter and receiver sub-arrays. Such a configuration enables a full 360 degrees of cover in azimuth and typically +/−60 degrees in elevation. |
申请公布号 |
PL1989570(T3) |
申请公布日期 |
2017.02.28 |
申请号 |
PL07701374T |
申请日期 |
2007.01.16 |
申请人 |
Teledyne Australia Pty Ltd. |
发明人 |
LONGSTAFF DENNIS |
分类号 |
G01S13/06;G01S13/28;H01Q21/08;H01Q21/20;H01Q21/24 |
主分类号 |
G01S13/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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