Ultra-wideband radar motion sensor
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.
- Issue Date:
- OSTI Identifier:
- 6829639
- Assignee:
- Univ. of California, Oakland, CA (United States) PTO; EDB-94-164772
- Patent Number(s):
- US 5361070; A
- Application Number:
- PPN: US 8-044717
- Contract Number:
- W-7405-ENG-48
- Resource Relation:
- Patent File Date: 12 Apr 1993
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION; MOTION DETECTION SYSTEMS; DESIGN; MEASURING METHODS; RADAR; SECURITY; TIME DELAY; ALARM SYSTEMS; MEASURING INSTRUMENTS; RANGE FINDERS 055001* -- Nuclear Fuels-- Safeguards, Inspection, & Accountability-- Technical Aspects