active detection system

active detection system

[′ak·tiv di′tek·shən ‚sis·təm]
(engineering)
A guidance system which emits energy as a means of detection; for example, sonar and radar.
References in periodicals archive ?
This growth primarily reflects an increase in revenues from the development of the PB500 PowerBuoy and an increase in revenues from OPT's PB150 PowerBuoy project in Reedsport, Oregon, partially offset by declines in revenues from OPT's Deep Water Active Detection System project with the US Navy and a utility PowerBuoy project with the US Navy at the Marine Corps Base in Hawaii as both of these projects neared completion.
It is OPT's first contract with the US Navy's Littoral Expeditionary Autonomous PowerBuoy (LEAP) programme and builds on its relationship that dates back to June 2007 when OPT was awarded a pounds 1 million contract to provide autonomous PowerBuoy technology for the Navy's Deep Water Active Detection System for ocean data gathering.
On the other hand, the NIST system is relatively broadband so it eliminates the problem of glint often associated with active detection systems. Glint is produced by uncontrolled standing waves generated between the target and its environment.

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