backscatter radar

backscatter radar

[′bak¦skad·ər ′rā‚där]
(ordnance)
An over-the-horizon radar system designed primarily to detect an enemy missile attack from far beyond the horizon, by detecting radio energy reflected from the ionosphere disturbance created by the missiles.
References in periodicals archive ?
The homodyne topology is the classic approach for backscatter radar where received signals are close in frequency to the transmitted carrier.
In this capacity, he worked contracted programs such as North Warning System, Over-the-Horizon Backscatter Radar System, Caribbean Basin Radar Network, and Tethered Aerostat Radar System.
Others, such as an electronically scanned, over-the-horizon (OTH) backscatter radar built by the General Electric Company, are very large.
ROTHR's backscatter radar component is responsible for performing all of the target-detection functions.
Together, these components determine the radar operating parameters for optimum target detection by the backscatter radar and provide the information necessary to accurately determine a detected target's position over the ground.
The transmit site generates the high power waveforms used by the backscatter radar and the vertical and downrange sounders.
Antennas come in all sizes and shapes - from micron-size for optical applications to the electronically scanned, HF, over-the-horizon backscatter radar built by the General Electric Co.
The spectrum of antenna sizes varies from microantennas that are 60 microns in diameter (developed by scientists at the National Institute of Standards and Technology, Boulder, CO) to the electronically scanned, HF, over-the-horizon backscatter radar built by the General Electric Co.
At the other end of the size spectrum are the electronically scanned, HF, over-the-horizon backscatter radar antennas built by the General Electric Co.
Originally intended for SBInet, these funds have been diverted to buy backscatter radars for Border Patrol checkpoints, vehicle- and aircraft-mounted cameras, thermal imagers, and the mobile surveillance systems.