Ultra-wideband radar motion sensor

Patent · Fri Dec 31 23:00:00 EST 1993

OSTI ID:869592

McEwan, Thomas E ^[1]

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1. Livermore, CA

A motion sensor is based on ultra-wideband (UWB) radar. UWB radar range is determined by a pulse-echo interval. For motion detection, the sensors operate by staring at a fixed range and then sensing any change in the averaged radar reflectivity at that range. A sampling gate is opened at a fixed delay after the emission of a transmit pulse. The resultant sampling gate output is averaged over repeated pulses. Changes in the averaged sampling gate output represent changes in the radar reflectivity at a particular range, and thus motion.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA
• DOE Contract Number: W-7405-ENG-48
• Assignee: Regents of University of California (Oakland, CA)
• Patent Number(s): US 5361070
• OSTI ID: 869592
• Country of Publication: United States
• Language: English

Related Subjects

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averaged
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change
changes
delay
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emission
fixed
fixed range
gate
interval
motion
motion sensor
operate
output
particular
pulse
pulse-echo
pulses
radar
radar motion
radar range
range
reflectivity
repeated
represent
resultant
sampling
sampling gate
sensing
sensor
sensors
staring
transmit
transmit pulse
ultra-wideband
ultra-wideband radar
uwb
wideband radar