A Novel Clutter Spectrum Compensation Method for End-fire Array Airborne Radar Based on Space-time Interpolation
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摘要: 端射阵天线因其低风阻和高增益特性而特别适用于机载雷达的前后向补盲，而天线的前后视放置则不可避免地要面临杂波的距离非平稳问题。该文基于端射阵机载雷达杂波谱特性，针对传统空时内插法(STINT)不能直接适用于距离模糊情况下端射阵杂波补偿这一情况，提出一种基于空时内插的端射阵杂波补偿新方法。该方法充分考虑了各距离门的模糊杂波，以远程平稳杂波脊主瓣区所对应的圆弧为插值参考子空间并细化了动目标约束的约束对象，实现了对距离模糊情况下端射阵非平稳杂波的有效补偿。计算机仿真结果验证了该文方法的有效性。Abstract: End-fire array antenna is extremely suitable for forward-looking or backward-looking blind compensation of airborne radar due to its low wind resistance and high-gain characteristics, while the forward-looking or backward-looking placement of antenna can not avoid the problem of range-dependent clutter. In this paper, in view of the fact that the conventional Space-Time INterpolation Technique(STINT) can not be directly applied to end-fire array clutter compensation in range ambiguity situation, a novel method of end-fire array clutter compensation based on space-time interpolation is proposed based on the characteristics of clutter spectrum for end-fire array airborne radar. The method takes full account of the ambiguous clutter of each range gate and takes the arc corresponding to the main lobe of the long-range stationary clutter ridge as the interpolation reference subspace. Furthermore, it also refines the constrained object of moving target constraints, which achieves effective compensation for the non-stationary clutter of end-fire array in range ambiguity situation. Computer simulation results verify the effectiveness of the proposed method.
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表 1 仿真参数设置
仿真参数 ${\theta _0}({\rm{^\circ }})$ ${\varphi _0}({\rm{^\circ }})$ M N K ${d_{\rm{x}}}\left( {\rm{m}} \right)$ ${d_{\rm{y}}}\left( {\rm{m}} \right)$ $\lambda \left( {\rm{m}} \right)$ $V\;({\rm{m/s)}}$ ${f_{\rm{r}}}\left( {{\rm{Hz}}} \right)$ $H\left( {{\rm{km}}} \right)$ ${R_{\max }}\left( {\rm{km}} \right)$ 数值 90 0 16 8 8 0.115 0.058 0.23 140 2435 8 368 
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刘喜玲. 机载端射阵列天线的研究[D]. [硕士论文], 电子科技大学, 2015: 1–19.LIU Xilin. Research of airborne end-fire antenna array[D]. [Master dissertation], University of Electronic Science and Technology of China, 2015: 1–19. 常仁, 王小谟, 刘姜玲, 等. 数字端射阵列栅瓣抑制研究[J]. 中国电子科学研究院学报, 2014, 9(3): 287–290. doi: 10.3969/j.issn.1673-5692.2014.03.012CHANG Ren, WANG Xiaomo, LIU Jiangling, et al. The research of grating lobe suppression of digital end-fire antenna array[J]. Journal of CAEIT, 2014, 9(3): 287–290. doi: 10.3969/j.issn.1673-5692.2014.03.012 郭先松, 孔令兵, 刘小飞. 机载预警雷达天线发展趋势及关键技术[J]. 现代雷达, 2015, 37(12): 19–24. doi: 10.16592/j.cnki.1004-7859.2015.12.004GUO Xiansong, KONG Lingbing, and LIU Xiaofei. Development trend and key technology of airborne early-warning radar antenna[J]. Modern Radar, 2015, 37(12): 19–24. doi: 10.16592/j.cnki.1004-7859.2015.12.004 ESHAGHI A, TAZLAUANU M, and SUPINSKI M. Wideband end-fire phased array for WiGig applications[C]. The IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting, San Diego, USA, 2017: 2559–2560. 王永良, 彭应宁. 空时自适应信号处理[M]. 北京: 清华大学出版社, 2000: 46–56.WANG Yongliang and PENG Yingning. Space-time Adaptive Processing[M]. Beijing: Tsinghua University Press, 2000: 46–56. 谢文冲, 段克请, 王永良. 机载雷达空时自适应处理技术研究综述[J]. 雷达学报, 2017, 6(6): 575–586. doi: 10.12000/JR17073XIE Wenchong, DUAN Keqing, and WANG Yongliang. Space time adaptive processing technique for airborne radar: An overview of its development and prospects[J]. Journal of Radars, 2017, 6(6): 575–586. doi: 10.12000/JR17073 许华健, 杨志伟, 廖桂生, 等. 一种稳健的非均匀杂波协方差矩阵估计方法[J]. 电子与信息学报, 2017, 39(5): 1036–1042. doi: 10.11999/JEIT160747XU Huajian, YANG Zhiwei, LIAO Guisheng, et al. Robust approach for clutter covariance matrix estimation with STAP in heterogeneous environment[J]. Journal of Electronics &Information Technology, 2017, 39(5): 1036–1042. doi: 10.11999/JEIT160747 BORSARI G K. Mitigating effects on STAP processing caused by an inclined array[C]. IEEE Radar Conference, RADARCON'98. Challenges in Radar Systems and Solutions, Dallas, USA, 1998: 135–140. HIMED B, ZHANG Yuhong, and HAJJARI A. STAP with angle-Doppler compensation for bistatic airborne radar[C]. 2000 IEEE Radar Conference, Long Beach, USA, 2002: 311–317. JAFFER A and HO P T. Adaptive angle-Doppler compensation techniques for bistatic STAP radars[R]. Final Technical Report, AFRL-SN-RS-TR-2005–398, 2005. 赵军, 田斌, 朱岱寅. 基于PAST处理的机载双基雷达自适应角度-多普勒补偿算法[J]. 雷达学报, 2017, 6(6): 594–601. doi: 10.12000/JR17053ZHAO Jun, TIAN Bin, and ZHU Daiyin. Adaptive angle-Doppler compensation method for airborne bistatic radar based on PAST[J]. Journal of Radars, 2017, 6(6): 594–601. doi: 10.12000/JR17053 贾逢德, 何子述, 李军, 等. 机载雷达平面阵前视杂波距离依赖性补偿[J]. 现代雷达, 2018, 40(7): 36–40. doi: 10.16592/j.cnki.1004-7859.2018.07.009JIA Fengde, HE Zishu, LI Jun, et al. Forward-looking clutter range-dependence compensation in planar array for airborne radar[J]. Modern Radar, 2018, 40(7): 36–40. doi: 10.16592/j.cnki.1004-7859.2018.07.009 LAPIERRE F D and VERLY J G. Registration-based solutions to the range-dependence problem in STAP radars[C]. The 11th Adaptive Sensor Array Processing Workshop, Lexington, USA, 2003: 1–6. 王娟, 王彤, 吴建新. 非正侧阵机载雷达杂波谱迭代自适应配准方法[J]. 系统工程与电子技术, 2017, 39(4): 742–747. doi: 10.3969/j.issn.1001-506X.2017.04.08WANG Juan, WANG Tong, and WU Jianxin. Registration-based compensation using iterative adaptive approach in non-side-looking airborne radar[J]. Systems Engineering and Electronics, 2017, 39(4): 742–747. doi: 10.3969/j.issn.1001-506X.2017.04.08 VARADARAJAN V and KROLIK J L. Joint space-time interpolation for distorted linear and bistatic array geometries[J]. IEEE Transactions on Signal Processing, 2006, 54(3): 848–860. doi: 10.1109/TSP.2005.862941 彭晓瑞, 谢文冲, 王永良. 一种基于空时内插的双基地机载雷达杂波抑制方法[J]. 电子与信息学报, 2010, 32(7): 1697–1702. doi: 10.3724/SP.J.1146.2009.00975PENG Xiaorui, XIE Wenchong, and WANG Yongliang. Improved joint space-time interpolation technique for bistatic airborne radar[J]. Journal of Electronics &Information Technology, 2010, 32(7): 1697–1702. doi: 10.3724/SP.J.1146.2009.00975 岳兵, 李明, 廖桂生. 基于空时插值的机载雷达杂波距离依赖性补偿方法[J]. 系统工程与电子技术, 2010, 32(8): 1557–1561. doi: 10.3969/j.issn.1001-506X.2010.08.01YUE Bing, LI Ming, and LIAO Guisheng. Compensation of clutter range dependence for airborne radar based on space-time interpolation[J]. Systems Engineering and Electronics, 2010, 32(8): 1557–1561. doi: 10.3969/j.issn.1001-506X.2010.08.01 刘锦辉, 廖桂生, 李明. 机载前视阵雷达杂波谱空时分离插值方法[J]. 电子与信息学报, 2011, 33(9): 2120–2124. doi: 10.3724/SP.J.1146.2010.01133LIU Jinhui, LIAO Guisheng, and LI Ming. Space-time separated interpretation method for forward-looking airborne radar clutter spectrum[J]. Journal of Electronics &Information Technology, 2011, 33(9): 2120–2124. doi: 10.3724/SP.J.1146.2010.01133 -
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