基于横向地球坐标系的极区超视距目标跟踪

doi:10.16182/j.issn1004731x.joss.201809035

摘要/Abstract

摘要： 针对极区(特别是近极点地区)超视距目标跟踪中,地理北作为方位基准带来的目指信息偏差问题,提出采用虚拟方式对地球表面进行重新划分,使地理极点区域转变为虚拟赤道区域,提出构建横向经纬网格、横向地球坐标系以及横向地理坐标系,提出将横向地理北作为方位基准,在极区用横向方位角表示目标方位,并构建基于横向地球坐标系的极区超视距目标跟踪模型,仿真结果表明,基于横向地球坐标系的极区超视距目标跟踪方法能够克服经线收敛带来的极区超视距目指信息偏差。

关键词: 极区, 超视距目标跟踪, 横向经纬网格, 横向地球坐标系, 横向地理坐标系

Abstract: Aiming at the problem of the deviation of the target information when taking the geographic north as the azimuth datum in the horizon target tracking in Arctic region (especially in the polar regions), a virtual method to re-partition the surface of the earth is proposed which can transform the geographic pole region into a virtual equatorial region. On the basis of the above, the transverse latitude and longitude grid, the transverse earth coordinate system and the transverse geographic coordinate system are constructed, The transverse geographic north is proposed as the azimuth datum, the target range is represented with the transverse azimuth in Arctic region, and the target tracking model based on the transverse earth coordinate system is constructed. The results of simulation analysis show that, the OTH (over the horizon) target tracking method based on the transverse earth coordinates can overcome the deviation of polar OTH target indication information brought by the meridian convergence in Arctic region.

Key words: Arctic region, OTH target tracking, transverse latitude and longitude grid, transverse earth coordinate system, transverse geographic coordinate system

中图分类号:

TN919

孙永侃, 张萍萍. 基于横向地球坐标系的极区超视距目标跟踪[J]. 系统仿真学报, 2018, 30(9): 3502-3513.

Sun Yongkan, Zhang Pingping. OTH Target Tracking Based on Transverse Earth Coordinate System in Arctic Region[J]. Journal of System Simulation, 2018, 30(9): 3502-3513.

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