发明名称 |
LOW IRRADIANCE SENSOR WITH ITERATIVE ANGULAR RESOLUTION (LISIAR) |
摘要 |
A laser warning receiver (LWR) to detect a very low power laser beam for a laser beam rider, and provide a high angular resolution in determining the angle-of-arrival of that beam. An aperture having a fixed field-of-view (FOV) is located in a detection channel followed by a narrow-band filter and a detector whose output is applied to a pulse analyzer circuit. A localization channel with the same FOV has a similar narrow-band filter and a lens to focus light from that FOV onto a detector through a N.times.M element LCD matrix, an output of that detector being applied to the pulse analyzer circuit whose output is applied to a LCD pattern selector connected to the matrix which controls elements in the matrix to provide a transparent window of variable size and position. The size and position of that window allows a laser beam to reach the detector, the window being iterative reduced in size when a beam is detected to provide the location of its source.
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申请公布号 |
CA2550032(A1) |
申请公布日期 |
2007.12.08 |
申请号 |
CA20062550032 |
申请日期 |
2006.06.08 |
申请人 |
HER MAJESTY IN RIGHT OF CANADA AS REPRESENTED BY THE MINISTER OF NATIONA L D |
发明人 |
FORTIN, JEAN;DUBOIS, JACQUES |
分类号 |
G01S7/495;F41H11/02 |
主分类号 |
G01S7/495 |
代理机构 |
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地址 |
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