雷达高分辨距离像自动目标识别方法的改进
doi: 10.3724/SP.J.1146.2005.01544
Improvement on Radar Automatic Target Recognition Using HRRPs
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摘要: 在雷达自动目标识别中，广泛利用基于散射点模型的高分辨距离像(HRRP)，并取得较好的识别效果。由于散射点具有一些特点，且距离单元内的散射点的情况有时比较复杂，从而使高分辨距离像出现一些异常，导致识别发生误判。该文针对发生的问题，主要讨论了飞机类目标对偏航、俯仰、侧摆三维姿态角变化的敏感性、飞机类目标在正侧视附近的特点以及测试样本的相干峰现象，并提出了相应的改进措施。仿真数据的识别试验结果表明该文提出的改进措施可以有效地提高识别性能。Abstract: Scattering center target model is widely used to describe the target electromagnetic scattering properties in optical region.It achieves good recognition performance in High Resolution Rang Profiles (HRRPs) based Radar Automatic Target Recognition (RATR). Due to the characteristics of scattering center, sometimes HRRPs may appear abnormity, which results in error classification. In order to solve the above problems, this paper mainly discusses the sensitivities of airplane targets with the variation of course, pitch and roll angle, the property of the HRRPs near the airplane targets broadside, and coherent apex phenomena in test data. Corresponding schemes are proposed to improve the recognition performance. Experimental results based on the simulated HRRP data show the proposed schemes can improve the recognition performance effectively.
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马建华, 刘宏伟, 保铮. 利用核匹配追踪算法进行雷达HRRP识别. 西安电子科技大学学报, 2005, 32(1): 84-88.[2]刘宏伟, 杜兰, 袁莉, 保铮. 雷达高分辨距离像识别研究进展[J].电子与信息学报.2005, 27(8):1328-1334浏览[3]Du Lan, Liu Hong-wei, and Bao Zheng. Radar HRRP target recognition based on higher order spectra[J].IEEE Trans. on Signal Processing.2005, 53(7):2359-2368[4]杜兰, 保铮, 邢孟道. 飞机目标的雷达一维距离像特性研究.西安电子科技大学学报, 2002, 28(Sup.): 14-19.[5]杜兰, 刘宏伟, 保铮. 利用目标方位信息改善雷达距离像识别性能. 系统工程与电子技术, 2004, 26(8): 1040-1043.[6]边肇祺，张学工.模式识别(第二版)，北京: 清华大学出版社，2000: 30-31, 136-140.[7]Li Hsueh-Jyh, Wang Yung-Deh, and Wang Long-huai. Matching score properties between rang profiles of high-resolution radar targets[J].IEEE Trans. on Antennas and Propagation.1996, 44(4):444-452[8]Li Hsueh-Jyh and Yang Sheng-Hui. Using range profile as feature vector to identify aerospace objects[J].IEEE Trans. on Antennas and Propagation.1993, 41(3):261-268[9]Gorshkov S A.[J].Leschenko S P, Orlenko V M, Sedyshev S Y, and Shirman Y D. Radar Target Backscattering Simulation Software and Users Manual. Boston. London: Artech House Publishers.2002,:-[10]廖学军. 基于高分辨距离的雷达目标识别. [博士论文], 西安: 西安电子科技大学, 1999. -
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