What may occur is that radar clutter from a wind turbine may be interpreted as being a return from an aircraft, or the clutter may be obscuring a genuine radar return
from an actual aircraft operating in the vicinity of that clutter.
An aircraft with full afterburners on creates a significant radar return
But when are the radar returns
produced through ice, or through layers of dust, or through other aspects of the terrain that await additional information from planned U.
from the time it took off, up to and including the last radar return
MBDA-France has been developing active stealth systems that attempt to cancel the radar return
from an airframe by transmitting a second signal of equal frequency and amplitude to the genuine return.
While not conclusive, the sensor and radar returns
revealed several irregular objects beneath the snow.
It works on the principle that the radar returns
from people, when they are carrying a gun or a knife, look different.
Using a SWO-secret decoder ring, I determined this failure left the controllers with no aircraft data associated with their raw radar returns
, and no graphic display of the final bearing line.
AIS has the great advantage of being able to 'see' around and over hills and other obstructions thereby eliminating the blind spots that sometimes appear on radar returns
where a vessel can be 'hidden' behind a headland.
But its objection was withdrawn after agreeing a single turbine did not have real potential to significantly affect radar returns
Nowadays, ground-based Doppler and airborne weather radars greatly assist in identifying their locations and even tracking their movements, but heavy downpours can still attenuate radar returns
and sucker unwary pilots directly into "the cat's mouth.
Desired Track, a two volume work, extensively reviews the air navigation data surrounding the incident including latitude/longitude positions at key times, air speeds, distances flown, winds, fuel burn, and FAA certified radar returns