Micropower impulse radar is a low-power ultra wideband radar developed in the mid-1990sScience & Technology Review January/February 1996 https://www.llnl.gov/str/pdfs/01_96.2.pdf at Lawrence Livermore National Laboratory, used for sensing and measuring distances to objects in proximity to each other.
Commercial applications include:
Vehicles: parking assistance, backup warnings, pre-collision detection and smart cruise control (measures the distance to the vehicles in front of you and if they get too close, throttle is released and brakes are applied). Appliances: studfinders and laser tape measures. Security: home intrusion motion sensors and perimeter surveillance. Search and rescue: micropower impulse radar can detect the beating of a human heart or respiration from long distances.
External links