New technology lets police "frisk" from a distance

A radar-based concealed threat detector

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.

Copyright © 2013 LexisNexis, a division of Reed Elsevier Inc. All rights reserved
Terms and Conditions Privacy Policy

Full story: New technology lets police "frisk" from a distance

Join the discussion

Copyright © 2019 All rights reserved.