Title :
Detecting Hidden Objects on Human Body Using Active Millimeter Wave Sensor
Author :
Kapilevich, Boris ; Einat, Moshe
Author_Institution :
Dept. of Electr. & Electron. Eng., Ariel Univ. Center of Samaria, Ariel, Israel
Abstract :
The paper describes millimeter wave (MMW) sensors designed for detecting both metallic and nonmetallic objects placed on a human body and hidden under clothes. The sensor is based on the synchronized detection principle and estimating a power of back-scattered signal from hidden objects. Time-gating algorithm combined with preliminary determined threshold level has been implemented in order to reach detection probability of ~ 90% or more for metal and plastic hidden objects at the distance up to 3 m.
Keywords :
millimetre wave devices; object detection; probability; sensors; MMW sensors; active millimeter wave sensor; back-scattered signal estimation; hidden objects detection; human body; metallic objects detection; nonmetallic objects detection; probability; synchronized detection principle; threshold level; time gating algorithm; Detectors; Frequency; Humans; Image sensors; Millimeter wave technology; Object detection; Optical receivers; Plastics; Terrorism; Weapons; Concealed weapon detection; homeland security; millimeter wave (MMW); sensors;
Journal_Title :
Sensors Journal, IEEE
DOI :
10.1109/JSEN.2010.2049350
