RADAR DETECTION RANGE ENHANCEMENT AT LOW FLYING TARGETS

The purpose of this paper is to exhibits the inflounce of the earth at low angles of the elevation imparts multiple lobes to pattern of radar antenna. The bottom lobe is raised from the earth by an angle, the size of which is related to the antenna elevation and wavelength. The multiple beam propagation of radio wave near the earth makes a single low flying target appear as a group. Also the targets presence in the detecting zone for radar system would be for low period of time, this which leads that the information about target will be very low. The increasing of elevation the antenna above the ground surface is the best activity way to approximate the radiation pattern as much as possible, in other ward inclining the top of bottom lope.