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

Patent · Sat Jan 01 00:00:00 EST 2000

OSTI ID:873445

Spalding, Richard E ^[1]; Grotbeck, Carter L ^[1]

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1. Albuquerque, NM

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.

• Research Organization: Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
• DOE Contract Number: AC04-94AL85000
• Assignee: Sandia Corporation (Albuquerque, NM)
• Patent Number(s): US 6160251
• OSTI ID: 873445
• Country of Publication: United States
• Language: English

Related Subjects

method
apparatus
distinguishing
sparse
events
event
false
alarms
remote
sensing
optical
distinguished
ghost
images
phenomena
generated
beam
splitter
optics
configured
direct
split
beams
single
sensor
segmented
true
signals
noise
based
image
presence
absent
obviates
dual
systems
effect
target
detection
capability
significantly
reducing
complexity
cost
remote sensing
optical signals
false alarms
optical beam
beam splitter
optical signal
sensor systems
single sensor
sensing method
split beam
optical events
sparse event
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