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Method and apparatus for distinguishing actual sparse events from sparse event false alarms

United States Patent

December 12, 2000
View the Complete Patent at the US Patent & Trademark Office
Sandia National Laboratories - Visit the Intellectual Property Management and Licensing Website
Remote sensing method and apparatus wherein sparse optical events are distinguished from false events. "Ghost" images of actual optical phenomena are generated using an optical beam splitter and optics configured to direct split beams to a single sensor or segmented sensor. True optical signals are distinguished from false signals or noise based on whether the ghost image is presence or absent. The invention obviates the need for dual sensor systems to effect a false target detection capability, thus significantly reducing system complexity and cost.
Spalding; Richard E. (Albuquerque, NM), Grotbeck; Carter L. (Albuquerque, NM)
Sandia Corporation (Albuquerque, NM)
09/ 092,064
June 5, 1998
This invention was made with support from the United States Government under Contract DE-AC04-94AL85000 awarded by the U.S. Department of Energy. The Government has certain rights in this invention.