10/30/2007

New technology lets police "frisk" from a distance

A radar-based concealed threat detector

By JERRY HAUSNER
Microwave Journal; International ed.
October 2007 International ed. 

Electro Science Technologies

The EST approach was to use a frequency domain approach to collect the data instead of a time domain system. The resulting signal waveform is then converted to time domain using a Chirp-Z transform. The impulse radar transmits a pulse with a duration of several hundred picoseconds and an amplitude of many kilovolts per meter. Such a device is quite expensive, large and heavy, and has many limitations.

Full story: ...
LexisNexis Copyright © 2013 LexisNexis, a division of Reed Elsevier Inc. All rights reserved.   
Terms and Conditions Privacy Policy
Back to previous page