经纬仪跟踪与激光指向一致性问题研究

贾文武,张三喜,雷涛. 经纬仪跟踪与激光指向一致性问题研究[J]. 光电工程,2020,47(9):190438. doi: 10.12086/oee.2020.190438
引用本文: 贾文武,张三喜,雷涛. 经纬仪跟踪与激光指向一致性问题研究[J]. 光电工程,2020,47(9):190438. doi: 10.12086/oee.2020.190438
Jia W W, Zhang S X, Lei T. The consistent of laser pointing and theodolite tracking[J]. Opto-Electron Eng, 2020, 47(9): 190438. doi: 10.12086/oee.2020.190438
Citation: Jia W W, Zhang S X, Lei T. The consistent of laser pointing and theodolite tracking[J]. Opto-Electron Eng, 2020, 47(9): 190438. doi: 10.12086/oee.2020.190438

经纬仪跟踪与激光指向一致性问题研究

  • 基金项目:
    武器装备军内科研资助项目(012016018200A13302)
详细信息
    作者简介:

    贾文武(1984-),男,博士,工程师,主要从事外弹道参数测试技术的研究。E-mail:jww4891@163.com

    通讯作者: 贾文武, E-mail: jww4891@163.com
  • 中图分类号: TJ760.6

The consistent of laser pointing and theodolite tracking

  • Fund Project: Supported by Military Research on Weapons and Equipment Fund (012016018200A13302)
More Information
  • 针对激光光轴与经纬仪跟踪光轴的轴间距离(移轴)以及光轴平行性误差造成经纬仪跟踪位置与激光指向位置不一致问题开展研究。对离轴和平行性误差的影响进行了分析,表明大的移轴量和平行性误差将导致激光指向和经纬仪跟踪指向的不一致,进而导致激光测距盲区增大、作用距离下降、目标定位精度降低等问题。提出一种基于偏置跟踪的激光指向动态修正方法,通过使目标始终位于激光光束中心,同时使得激光测距位置和经纬仪跟踪锁定位置保持一致,有效解决了激光边缘能量下降对作用距离的影响,针对某型经纬仪可使目标的测距盲区从1 km下降到82 m。同时针对偏置跟踪算法需要目标初始距离以启动偏置跟踪的问题,提出初始距离未知目标一维搜索方法,大大提高了对初始距离未知目标的搜索效率。本文方法较好地解决了经纬仪跟踪位置与激光指向位置的一致性问题,大大降低了对激光光轴与经纬仪跟踪光轴的移轴与平行性限制。

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  • 图 1  激光移轴对距离测量的影响

    Figure 1.  The influence of off boresight to range detecting

    图 2  光轴平行性误差影响示意图

    Figure 2.  The influence of parallelism error

    图 3  跟踪偏置量计算示意图

    Figure 3.  The offset value of bias tracking

    图 4  改造前经纬仪跟踪流程

    Figure 4.  The tracking procedure of theodolite before rebuilding

    图 5  改造后经纬仪偏置跟踪流程

    Figure 5.  The tracking procedure of theodolite after rebuilding

    图 6  搜索扫描曲线。(a)玫瑰扫描; (b)利萨如扫描;(c)逐行扫描;(d)螺旋扫描

    Figure 6.  Searching cure. (a) Rose curve scanning, (b) Lissajous curve; (c) Branch scanning; (d) Spiral scanning

    图 7  某型光电经纬仪负载分布图

    Figure 7.  The loads of a kind of theodolite

    图 8  激光束中心目标成像位置。(a)模拟激光束及激光光轴指向;(b)可见光成像系统中的成像;(c)在红外捕获系统中的成像

    Figure 8.  The imaging location of target in center of laser beam. (a) Simulating laser beam and its pointing; (b) The imaging location in visible imaging system; (c) The imaging location in infrared capture system

    图 9  搜索路径。(a)可见光测量跟踪系统搜索路径;(b)红外捕获跟踪系统搜索路径

    Figure 9.  Searching path. (a) Searching path for the visible imaging system; (b) Searching path for the infrared capture system

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出版历程
收稿日期:  2019-07-24
修回日期:  2019-11-29
刊出日期:  2020-09-15

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