Radar target identification using a DTV-based passive radar in South Korea

In this paper, we discuss a method for recognizing aircraft targets from a scattered field, which was measured using a digital television-based (DTV-based) passive radar. We combined scattered fields of coherent multiple channels to improve the range resolution of the range profile. We extracted scattering centers by using a gradient descent technique that uses a CLEAN algorithm. These scattering centers were classified using a support vector machine. To validate the proposed methods, we conducted a simulation at three operational stations in Korea. The results of the experiment show that the proposed methods have a better target recognition performance than the single-channel method.