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U.S. Department of Energy
Office of Scientific and Technical Information

Ultra-wideband radar motion sensor

Patent ·
OSTI ID:6829639

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. 15 figs.

DOE Contract Number:
W-7405-ENG-48
Assignee:
Univ. of California, Oakland, CA (United States)
Patent Number(s):
A; US 5361070
Application Number:
PPN: US 8-044717
OSTI ID:
6829639
Country of Publication:
United States
Language:
English