ISAR Resolution Evaluation Method Based on High Precision Motion Information
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摘要: ISAR分辨率评估是空间目标成像雷达精度鉴定的重要内容。该文针对ISAR分辨率评估中的基准计算与方法设计两个关键问题进行了详细分析，进而提出了基于空间目标高精度轨道与遥测姿态等运动信息的ISAR方位向定标方法。在此基础上，建立了一种新的ISAR分辨率评估方法。利用某雷达精度鉴定试验中对不同空间目标的实测成像数据，验证了该文方法的合理性与有效性。Abstract: ISAR resolution evaluation is an important part of accuracy evaluation of space target imaging radar. Two difficult problems, i.e. the selection of evaluation criteria and the design of evaluation methods are discussed in detail. Then an ISAR cross-range scaling algorithm based on high precision orbit and telemetry attitude of space target is proposed. A new ISAR resolution evaluation method is established based on the new scaling technique. The method is validated by using the actual imaging test data for different types of space targets.
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表 2 某雷达精度鉴定试验中ISAR分辨率评估结果
目标 分类 距离向 方位向 目标 分类 距离向 方位向 1 3 1.46 1.51 6 1 1.67 1.60 2 3 1.47 1.50 7 1 1.65 1.52 3 3 1.46 1.51 8-1 2 1.64 1.41 4 3 1.48 1.50 8-2 2 1.31 1.7 5-1 1 1.70 1.53 9 4 1.553 1.43 5-2 1 1.70 1.64 10 4 1.78 1.53 
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[1] 句彦伟, 张燕. ISAR图像质量评估方法[J]. 系统工程与电子技术, 2015, 37(2): 297–303. doi: 10.3969/j.issn.1001-506X.2015.02.11JU Yanwei and ZHANG Yan. Research on ISAR image quality evaluation[J]. Systems Engineering and Electronics, 2015, 37(2): 297–303. doi: 10.3969/j.issn.1001-506X.2015.02.11 [2] RIHACZEK A W. Radar resolution of ideal point scatterers[J]. IEEE Transactions on Aerospace and Electronic Systems, 1996, 32(2): 842–845. doi: 10.1109/7.489527 [3] MIR H S and CARLSON B D. On the definition of radar range resolution for targets of greatly differing RCS[J]. IEEE Transactions on Instrumentation and Measurement, 2012, 61(3): 655–663. doi: 10.1109/TIM.2011.2170371 [4] 王岩飞, 陈新星. 一种SAR分布目标可分辨概率精确计算方法[J]. 电子与信息学报, 2018, 40(12): 2848–2853.WANG Yanfei and CHEN Xinxing. A precise method for calculating the resolution of SAR distribution targets[J]. Journal of Electronics &Information Technology, 2018, 40(12): 2848–2853. [5] 史林, 郭宝锋, 马俊涛, 等. 基于图像旋转相关的空间目标ISAR等效旋转中心估计算法[J]. 电子与信息学报, 2019, 41(6): 1280–1286. doi: 10.11999/JEIT181086SHI Lin, GUO Baofeng, MA Juntao, et al. Rotation center estimation algorithm for ISAR image of the space target based on image rotation and correlation[J]. Journal of Electronics &Information Technology, 2019, 41(6): 1280–1286. doi: 10.11999/JEIT181086 [6] 邵帅, 张磊, 刘宏伟. 一种基于图像最大对比度的联合ISAR方位定标和相位自聚焦算法[J]. 电子与信息学报, 2019, 41(4): 779–786. doi: 10.11999/JEIT180521SHAO Shuai, ZHANG Lei, and LIU Hongwei. A novel joint ISAR cross-range scaling and phase autofocus algorithm based on image contrast maximization[J]. Journal of Electronics &Information Technology, 2019, 41(4): 779–786. doi: 10.11999/JEIT180521 [7] ZHANG Shuanghui, LIU Yongxiang, LI Xiang, et al. Fast ISAR cross-range scaling using modified Newton method[J]. IEEE Transactions on Aerospace and Electronic Systems, 2018, 54(3): 1355–1367. doi: 10.1109/TAES.2017.2785560 [8] 李东, 张成祥, 赵迪, 等. 基于伪逆极坐标傅里叶变换的快速ISAR方位定标[J]. 电子与信息学报, 2019, 41(2): 262–269. doi: 10.11999/JEIT180299LI Dong, ZHANG Chengxiang, ZHAO Di, et al. Fast cross-range scaling for ISAR imaging based on pseudo polar Fourier transform[J]. Journal of Electronics &Information Technology, 2019, 41(2): 262–269. doi: 10.11999/JEIT180299 [9] 马健, 钱涛, 周剑雄. 基于高分辨距离像测角的ISAR图像横向定标[J]. 空军预警学院学报, 2016, 30(3): 178–182. doi: 10.3969/j.issn.2095-5839.2016.03.006MA Jian, QIAN Tao, and ZHOU Jianxiong. Cross-range scaling of ISAR image based on angle measurement with high resolution range profiles[J]. Journal of Air Force Early Warning Academy, 2016, 30(3): 178–182. doi: 10.3969/j.issn.2095-5839.2016.03.006 [10] 盛佳恋, 张磊, 邢孟道, 等. 联合运动补偿的逆合成孔径雷达成像方位定标方法[J]. 系统工程与电子技术, 2014, 36(5): 859–865. doi: 10.3969/j.issn.1001-506X.2014.05.08SHENG Jialian, ZHANG Lei, XING Mengdao, et al. Joint method of motion compensation and cross-range scajing for inverse synthetic aperture radar imaging[J]. Systems Engineering and Electronics, 2014, 36(5): 859–865. doi: 10.3969/j.issn.1001-506X.2014.05.08 [11] MARTORELLA M. Novel approach for ISAR image Cross-Range scaling[J]. IEEE Transactions on Aerospace and Electronic Systems, 2008, 44(1): 281–294. doi: 10.1109/TAES.2008.4517004 [12] MUÑOZ-FERRERAS J M and PÉREZ-MARTÍNEZ F. Uniform rotational motion compensation for inverse synthetic aperture radar with non-cooperative targets[J]. IET Radar, Sonar & Navigation, 2008, 2(1): 25–34. [13] 刘鑫阁, 邢孟道, 孙光才. 一种高精度的ISAR转动补偿和方位定标方法[J]. 电子与信息学报, 2018, 40(9): 2250–2257. doi: 10.11999/JEIT171209LIU Xinge, XING Mengdao, and SUN Guangcai. A high-precision method of the rotation compensation and cross-range scaling for ISAR imaging[J]. Journal of Electronics &Information Technology, 2018, 40(9): 2250–2257. doi: 10.11999/JEIT171209 [14] 叶春茂, 鲁耀兵, 宋建社, 等. 一种ISAR目标转动补偿及图像尺寸标定方法[J]. 电子学报, 2014, 42(3): 611–615. doi: 10.3969/j.issn.0372-2112.2014.03.030YE Chunmao, LU Yaobing, SONG Jianshe, et al. A rotation compensation and image scaling method for ISAR targets[J]. Acta Electronica Sinica, 2014, 42(3): 611–615. doi: 10.3969/j.issn.0372-2112.2014.03.030 [15] 杨磊, 毛欣瑶, 杨晓炜, 等. 基于非监督贝叶斯学习雷达性能指标动态评估[J]. 系统工程与电子技术, 2021, 43(1): 74–82. doi: 10.3969/j.issn.1001-506X.2021.01.10YANG Lei, MAO Xinyao, YANG Xiaowei, et al. Dynamic evaluation of radar performance index based on unsupervised Bayesian learning[J]. Systems Engineering and Electronics, 2021, 43(1): 74–82. doi: 10.3969/j.issn.1001-506X.2021.01.10 [16] 周叶剑, 张磊, 王虹现, 等. 空间轨道目标的逆合成孔径雷达成像质量分析[J]. 雷达学报, 2017, 6(1): 17–24.ZHOU Yejian, ZHANG Lei, WANG Hongxian, et al. Performance analysis on ISAR imaging of space targets[J]. Journal of Radars, 2017, 6(1): 17–24. -
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