发明名称 |
System and method for identifying navigational markers using radar |
摘要 |
A system containing a navigational marker, the navigational marker having the ability to reflect radar in such a manner that the navigational marker is identified. In one embodiment, a polarized radar-reflective material is affixed to the navigational marker. A radar signal is reflected by the polarized radar-reflective material, causing the reflected radar signal to be polarized. The reflected radar signal is received and the navigational marker is identified. The radar system contains a detector/decoder capable of distinguishing the type of navigational marker based on the reflected radar signal. The detector/decoder relays information about the navigational marker to a display. In another embodiment, a navigational marker contains a radio responder. When a radar signal illuminates the navigational marker, the radio responder transmits a signal containing encoded data. A receiver detects the signal from the responder and decodes the encoded data. The decoded data is relayed to a display.
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申请公布号 |
US6664916(B1) |
申请公布日期 |
2003.12.16 |
申请号 |
US20020215426 |
申请日期 |
2002.08.09 |
申请人 |
STAFFORD TODD R.;HIGGINS DENNIS C. |
发明人 |
STAFFORD TODD R.;HIGGINS DENNIS C. |
分类号 |
G01S7/02;G01S13/74;G01S13/75;G01S13/91;(IPC1-7):G01S13/74;G01S13/00;G01S13/88;G01S13/93 |
主分类号 |
G01S7/02 |
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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