发明名称 |
Aerial electronic detection of surface and underground threats |
摘要 |
An aerial electronic system for detection of surface and underground threats comprises an electromagnetic (EM) gradiometer flown aloft over the possible ground and underground threats to a convoy. The EM gradiometer is disposed in a Styrofoam torpedo shaped pod that is towed in flight behind an airplane. An illumination transmitter and loop antenna mounted to the airplane radiate a primary EM wave that travels down to the ground surface and penetrates beneath. Frequencies of 80 KHz to 1 MHz are selected according to whether the targets are laying on the surface or deeply buried. Detonation wire pairs, buried cables and pipes, and other conductors will re-radiate a secondary wave that can be sensed by the EM gradiometer. A reference sample of the transmitter signal is carried down a fiberoptic from the airplane to the towed pod. This signal is used in the synchronous detection to measure the secondary EM wave phase.
|
申请公布号 |
US2007035304(A1) |
申请公布日期 |
2007.02.15 |
申请号 |
US20060405602 |
申请日期 |
2006.04.17 |
申请人 |
STOLARCZYK LARRY G;SANCHEZ TITO;MYERS JOHN;VALENTINE CHANCE;STOLARCZYK GERALD L;TROUBLEFIELD ROBERT;BAUSOV IGOR;BOTLA LAXMI N;BEARD BEAUX;MAIN RICHARD B |
发明人 |
STOLARCZYK LARRY G.;SANCHEZ TITO;MYERS JOHN;VALENTINE CHANCE;STOLARCZYK GERALD L.;TROUBLEFIELD ROBERT;BAUSOV IGOR;BOTLA LAXMI N.;BEARD BEAUX;MAIN RICHARD B. |
分类号 |
G01V3/16 |
主分类号 |
G01V3/16 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|