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2018-10-30

Research on Analysis of High-Order Fractal Characteristics of Aircraft Echoes and Classification of Targets in Low-Resolution Radars

By Qiusheng Li, Huaxia Zhang, and Rongsheng Lai
Progress In Electromagnetics Research M, Vol. 75, 61-68, 2018
doi:10.2528/PIERM18081101

Abstract

High-order fractal characteristics of low-resolution radar echoes provide a supplementary description of the dynamic characteristics of the echo structure of a target, which provides a new way for the classification and recognition of targets with low-resolution radars. On basis of introducing the definition of high-order fractal statistic-lacunarity as well as its calculation method and the lacunarity characteristics of a target echo under additive fractal clutter background, this paper analyzes the characteristics of the lancunarity parameter variation of target echoes from a surveillance radar at a VHF band, and puts forward a classification method for aircraft based on the feature of the echo lacunarity scale change rate from the viewpoint of pattern recognition. The target classification experiments using real recorded echo data show that, as a high-order fractal characteristic parameter, the lacunarity scale change rate can be used as an effective feature for aircraft target classification and recognition, and the proposed method has good classification performance.

Citation


Qiusheng Li, Huaxia Zhang, and Rongsheng Lai, "Research on Analysis of High-Order Fractal Characteristics of Aircraft Echoes and Classification of Targets in Low-Resolution Radars," Progress In Electromagnetics Research M, Vol. 75, 61-68, 2018.
doi:10.2528/PIERM18081101
http://www.jpier.org/PIERM/pier.php?paper=18081101

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