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System for enhancing navigation and surveillance in low visibility conditions

  • US 5,719,567 A
  • Filed: 05/30/1995
  • Issued: 02/17/1998
  • Est. Priority Date: 05/30/1995
  • Status: Expired due to Fees
First Claim
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1. A system for locating in a low visibility atmosphere an object having at least one identifying marker, said system comprising:

  • means co-located with said at least one identifying marker for emitting ultraviolet radiation substantially in the solar blind region that penetrates the low visibility atmosphere, wherein water present in fog causing said low visibility atmosphere interacts with and breaks down the ozone therein so as to reduce the attenuation attributable to the ozone in said atmosphere of the emitted ultraviolet radiation, said means for emitting positioned so as to establish the location of the object within a desired field of view;

    means responsive to said ultraviolet radiation for creating an image of said means for emitting, said image depicting the location of said object within the desired field of view; and

    means for processing said image so as to remove associated radiation from objects also emitting within the solar blind region.

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