High-resolution polarimetric radar targets recognition based on the fractal characterization

For high-resolution radar, target recognition is performed by using one-dimensional range profile. In this method, a radar target is described as composed of several kinds of scattering centers with different geometric shapes and structures. However, one-dimensional range profile is so extremely sensitive to aspect angle that a useful target recognition procedure is very unlikely to evolve from it. A novel idea is to use polarimetric range profile understanding technique to improve the recognition performance. In this paper, a study is performed on the fractal characterization of one-dimensional range profiles of high-resolution polarimetric radar targets at four kinds of polarimetric states (HH, HV, VH, VV), and a new concept of the fractal matrix is proposed.