But this is really too huge, to our infinitesimal mankind, almost can not realize, can depend on the barometer sensitive ground detection air pressure of slightly allow a dissimilarity.

The key to the settlement of the question of effective detection of ground and low air targets lies in adaptive of effective clutter suppression in airborne Radar.

There are four forms of forest fire detection, and they are patrolling on the ground, observing on the watchtower, patrolling in the air and detection by the satellite from the outer space.