基于距离矩阵的星图运动目标检测

发布时间：2018-01-04 15:07

本文关键词：基于距离矩阵的星图运动目标检测　出处：《光学精密工程》2017年07期 　论文类型：期刊论文

【摘要】：为了克服传统星图空间运动目标检测方法对星图帧间图像亮度、帧间配准以及成像模式等具有敏感度较高的缺点,利用星点间拓扑结构稳定的特性,提出了基于距离矩阵的星图运动目标检测方法。该方法首先对各帧星图独立检测目标,然后构建星点的距离矩阵,并与相邻帧星图的距离矩阵作减法,则得到运动目标对应的距离变化较大的一些列(行),利用这个性质完成运动目标的检测。由于距离矩阵与星图成像条件无关,只受运动目标的影响,因此该方法对星图帧间图像亮度、观测平台抖动、帧间失配以及成像模式等具有鲁棒性。仿真试验和真实数据试验表明,该方法在帧间失配等情况下,仍然能够从背景恒星中有效地识别空间运动目标。与传统方法比较,本文方法具有更低的虚警率。
[Abstract]:In order to overcome the shortcomings of traditional star map spatial moving target detection method which has high sensitivity to image brightness, frame registration and imaging mode, the stable topological structure between stars is used. This paper proposes a distance matrix based star map moving target detection method, which firstly detects the target independently for each frame star map, then constructs the star distance matrix and subtracts the distance matrix from the adjacent star map. Then some columns corresponding to the moving target are obtained. The range matrix is independent of the imaging conditions of the star map and is only affected by the moving target. Therefore, the method is robust to star image brightness, observation platform jitter, inter-frame mismatch and imaging mode. Simulation and real data experiments show that the method is in the case of inter-frame mismatch. It is still able to effectively identify moving objects in space from background stars. Compared with traditional methods, the proposed method has a lower false alarm rate.
【作者单位】：中国科学院长春光学精密机械与物理研究所;中国科学院大学;
【基金】：国家863高科技研究发展计划资助项目(No.2011AAXXX2035) 中国科学院长春光学精密机械与物理研究所三期创新工程资助项目(No.065X32CN60)
【分类号】：P172;TP391.41
【正文快照】： (2.中国科学院大学,北京100049)1引言空间监视系统是进行空间控制不可或缺的一种重要手段,其主要基于地基观测方式实现,多采用地基光学望远镜、雷达探测器及无线电信号探测器组成的监视网来对空间目标进行探测和跟踪。空间监视系统的主要监视目标(空间目标)主要是指卫星,也包

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