Efficient construction of training database for identification of aircraft HRR profiles

High resolution range (HRR) profiles show one-dimensional radar images including the electromagnetic scattering phenomena of a target. Thus, they are not only robust to noise, but also easily obtainable in real-time. However, in order to construct a training database for successful radar target identification, a huge number of HRR profiles are needed, because they are highly dependent on the relative angle between the radar and target. In order to alleviate this difficulty, a database construction method based on the scenarios of the target's movement is proposed. The proposed method is able to provide reliable target identification performance even with a small training database.