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      Low-resolution Airborne Radar Air/ground Moving Target Classification and Recognition

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          Abstract

          Radar Target Recognition (RTR) is one of the most important needs of modern and future airborne surveillance radars, and it is still one of the key technologies of radar. The majority of present algorithms are based on wide-band radar signal, which not only needs high performance radar system and high target Signal-to-Noise Ratio (SNR), but also is sensitive to angle between radar and target. Low-Resolution Airborne Surveillance Radar (LRASR) in downward-looking mode, slow flying aircraft and ground moving truck have similar Doppler velocity and Radar Cross Section (RCS), leading to the problem that LRASR air/ground moving targets can not be distinguished, which also disturbs detection, tracking, and classification of low altitude slow flying aircraft to solve these issues, an algorithm based on narrowband fractal feature and phase modulation feature is presented for LRASR air/ground moving targets classification. Real measured data is applied to verify the algorithm, the classification results validate the proposed method, helicopters and truck can be well classified, the average discrimination rate is more than 89% when SNR ≥ 15 dB.

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          Author and article information

          Journal
          Journal of Radars
          Chinese Academy of Sciences
          01 October 2014
          : 3
          : 5
          : 497-504
          Affiliations
          [1 ] AVIC LEIHUA Electronic Technology Research Institute
          [2 ] National Laboratory of Radar Signal Processing, Xidian University
          Article
          69006f6289244dea944503bf41d846a2
          10.3724/SP.J.1300.2014.14092

          This work is licensed under a Creative Commons Attribution 4.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

          Categories
          Technology (General)
          T1-995

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