Comparison of 1-D and 2-D aircraft images

A preliminary comparison is made between one- and two-dimensional images of airplanes, and the possible use of one-dimensional imagery for aircraft target identification is investigated. Observations are made at X-band ( lambda =3 cm). Graphical data are presented for both one-dimensional and two-dimensional images. The preliminary conclusions based on nine data runs on two types of aircraft (Boeing 727 and Lockheed L-1011) are (1) one-dimensional high-resolution range profiles are highly aspect angle dependent and do not appear useful for TID and (2) two-dimensional high-resolution images do appear useful for TID.<>