Airborne objects can exploit the radar shadow zone and clutter zone to avoid radar detection by using a technique called nap-of-the-earth navigation.
2.
Below 3 MHz, the whole volume of the air acts as a waveguide to fill in the radar shadow and also reduces radar sensitivity above the duct zone.
3.
The French newspaper Liberation, which first reported the Sunday air strike, said that a single Mirage fighter evaded detection by NATO air controllers by flying in the radar shadow of a previously-scheduled French reconnaissance mission over Bosnia.
4.
Such a system ought in principle to be able to make an aircraft entirely invisible, were it to be feasible to actively mimic an undisturbed RADAR signature ( canceling all reflections, and compensating for any RADAR shadow ) however such a system would be incalculably difficult and is not envisaged.
मोबाइल