[author_cn_name].[cn_title][J].空军工程大学学报:自然科学版,[year_id],[volume]([issue]):[start_page]-[end_page] 临近空间高超声速再入滑翔目标跟踪模型-Target Tracking Model for Hypersonic Reentry Glide Vehicle in Near Space
文章摘要
张裕禄,毕红葵,叶泽浩,李凡.临近空间高超声速再入滑翔目标跟踪模型[J].空军工程大学学报:自然科学版,2019,20(5):33-39
临近空间高超声速再入滑翔目标跟踪模型
Target Tracking Model for Hypersonic Reentry Glide Vehicle in Near Space
  
DOI:
中文关键词: 高超声速再入滑翔飞行器  运动特性  目标跟踪  分离滤波
英文关键词: HRGV  motion characteristics  target tracking  separate filtering
基金项目:
作者单位
张裕禄,毕红葵,叶泽浩,李凡 空军预警学院武汉430019 
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中文摘要:
      针对临近空间高超声速再入滑翔飞行器(HRGV)的跳跃滑翔跟踪问题,建立一种新型跟踪模型。首先对目标进行受力分析并结合HRGV横、纵向运动特性得到各方向气动加速度特性;在此基础上将气动加速度中的阻力和爬升力加速度建模为正弦自相关模型,转弯力加速度建模为一阶马尔科夫模型;然后采用一种分离滤波模型对目标状态和气动加速度分别进行估计,推导得出状态滤波模型和气动加速度滤波模型表达式。仿真实验结果表明,相比该类目标的其他跟踪算法,该算法的跟踪精度有一定提高,此模型优越性较强。
英文摘要:
      Aimed at the problems that the degree of freedom in the current nested MIMO array (Multiple-Input Multiple-Input Multiple Output Multiple Array) is limited, an optimized nested array is proposed, i.e. to optimize the nested MIMO array design. This method not only retains the original advantage of nested MIMO array design-closed expression with array element position and degree of freedom, but also greatly improves the array aperture and degree of freedom (DOF). Firstly, the optimized nested array is used as the transmitting and receiving arrays, and then the difference between the MIMO arrays is processed to obtain the difference array of array elements. By properly designing the array spacing of the transmitting and receiving arrays, a non-porous difference matrix can be obtained. When the total number of array elements is given, by analyzing the characteristics of the array structure, the best array element number of the transmitting and receiving arrays can be obtained. The simulation experiments show that compared with the nested MIMO array design, the proposed method can effectively expand the array aperture, increase the degree of freedom, and increase the DOA estimation accuracy of the MIMO radar under condition of non increasing the number of actual array elements.
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