临近空间高超声速助推-滑翔式轨迹目标跟踪

发布时间：2018-01-04 12:34

本文关键词：临近空间高超声速助推-滑翔式轨迹目标跟踪　出处：《宇航学报》2015年10期 　论文类型：期刊论文

【摘要】：针对临近空间高超声速、助推-滑翔式轨迹目标跟踪的问题,提出一种经度-纬度-高度坐标系(Longitude-Latitude-Altitude,LLA)下基于目标轨迹特性分析的三维投影跟踪算法。首先,针对临近空间目标在经纬方向上的线性高超声速运动和高度方向上高机动频率运动的不同,将目标量测分别投影到经纬平面和高度方向上,并通过分段跟踪处理,以减小耦合误差对目标跟踪精度的影响;接着,在对目标高超声速特性充分分析的基础上,利用经纬方向上的点迹归并和凝聚处理,以有效解决目标高超声速运动所引起的分裂问题;然后,在对目标高度IMM跟踪的基础上,通过对加速度突变的合理检测和补偿,以进一步实现目标在高度方向上高机动频率运动的可靠跟踪;最后,结合统计学原理,将目标在同一时刻不同跟踪段中的状态估计相关联,以有效实现临近空间高超声速、助推-滑翔式轨迹目标的精确跟踪。仿真结果表明,与现有的临近空间目标跟踪算法相比,该算法具有较高的定位跟踪精度。
[Abstract]:The near space hypersonic boost glide trajectory tracking problem, proposes a longitude and latitude altitude coordinates (Longitude-Latitude-Altitude, LLA) under three-dimensional projection analysis based on the characteristics of the target trajectory tracking algorithm. Firstly, the linear near space target in longitude direction on the hypersonic movement and height direction of high mobility the frequency of the motion, the target measurement are projected onto the plane longitude and height direction, and through segment tracking processing, in order to reduce the effect of coupling error tracking accuracy of the target; then, based on the adequate analysis of hypersonic target characteristics, the longitude and latitude direction points on the track merge and split coagulation treatment in order to effectively solve the hypersonic target caused by motion; then, based on the height of the target IMM tracking, based on reasonable acceleration mutation detection and compensation In order to achieve the goal, reliable tracking in the height direction of high frequency motor movement; finally, according to the principle of statistics, the target at the same time in different tracking state estimation associated with the effective realization of near space hypersonic boost glide trajectory tracking targets. The simulation results show that, compared with the near space target existing tracking algorithm, the localization algorithm has higher tracking accuracy.

【作者单位】：海军航空工程学院信息融合研究所;
【基金】：国家自然科学基金(61372027,61102165,61102167)
【分类号】：TN953;E91
【正文快照】： 0引言随着X51A、X47B等临近空间飞行器[1]的相继试验成功,以高超声速导弹[2]为代表的全球快速打击武器的出现已势不可挡。与传统的气动目标[3]和卫星轨道目标[4]不同,临近空间飞行器具有其独特的高超声速、助推-滑翔式轨迹[5]形式,可在两小时内对全球任一目标进行快速精确打击

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