The plane is a modified Boeing 707, with a rotating radar dome atop the aircraft . The radar system is used to look down to detect, identify and track hostile and friendly low-flying aircraft . It is able to eliminate ground clutter that confuse other radar systems.
32.
Fans of the Weather Channel are no doubt familiar with ground clutter, a radar phenomenon in which buildings, hills and other fixed elements of the landscape return signals that can make it difficult to distinguish elements that weather radar is designed to see, like an approaching storm.
33.
A GMTI radar must distinguish a moving target from ground clutter by using the target s Doppler signature to detect the radial component of the target s velocity vector ( i . e ., by measuring the component of the target s movement directly along the radar-target line ).
34.
:: : See Look-down / shoot-down-it describes the ability some modern combat aircraft have to firstly detect a low flying target and distinguish it from " ground clutter " and secondly the ability to effectively engage such a target . talk ) 20 : 51, 22 March 2011 ( UTC)
35.
It could be advantageous in judging distances wherever there is little or no nearby ground clutter during their nocturnal hunts and other situations where it might serve as a reference system that reveals the ambient acoustic conditions in which any prey, or foe, are generating sound, helping to better locate them.
36.
It might be like fighting fires . . . by putting out the small fires before they can burn off the ground debris you ensure rare, but huge, uncontrollable fires, once the ground clutter accumulates to a point where fires can no longer be controlled . 08 : 48, 1 November 2005 ( UTC)
37.
Rather than focusing on acceleration and climb rate, the design emphasis is on range and missile carrying capacity, which together translate into combat endurance, look-down / shoot-down radars good enough to detect and track fast moving interdictors against ground clutter, and the capability to provide guidance to air-to-air missiles ( AAM ) against these targets.
38.
This high off-nose pointing allows the AESA equipped fighter to employ Crossing the T against a mechanically scanned radar that would filter out the low closing speed of the perpendicular flight as ground clutter while the AESA swivels 40 degrees towards the target in order to keep it within the AESA's 60 degree off-angle limit.
39.
It is not a good model for most terrestrial links because of multipath, terrain blocking, interference, etc . However, for terrestrial path modeling, AWGN is commonly used to simulate background noise of the channel under study, in addition to multipath, terrain blocking, interference, ground clutter and self interference that modern radio systems encounter in terrestrial operation.
40.
The Type 965 was unable to cope with low level targets as it suffered multiple path crossings and targets became lost in radar clutter from the surface of the South Atlantic, this resulted in Sea Dart being unable to lock onto targets at distance obscured by land, or fast-moving low-level targets obscured in ground clutter or sea-returns.
