| 摘要 |
A system for locating man-made specularly reflecting objects amongst non-specular surroundings such as foliage includes apparatus to initially project orthogonally polarized laser pulses towards a given area and to then detect returned laser pulses which are polarized, while rejecting randomly polarized radiation returned from non-specular objects. In one embodiment, specularly reflecting objects are detected by providing two detectors, each sensitive to light of a different polarization, and by differentially summing their outputs to reject randomly polarized incident light.
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