论文标题
暂时ASF校正中离群值删除对多键LORAN定位精度的影响
Effect of Outlier Removal from Temporal ASF Corrections on Multichain Loran Positioning Accuracy
论文作者
论文摘要
广泛使用的全局导航卫星系统（GNSS）容易受到射频干扰（RFI）的影响。陆地导航系统远程导航（Loran）可以弥补这一弱点；但是，它的定位准确性较低，并且正在进行研究以提高其定位性能。一项这样的研究提出了多键洛兰定位方法，该方法使用了属于不同链的传输站的信号。尽管多键Loran定位性能优于常规方法的性能，但附加的次要因素（ASF）仍然可以降低其定位精度。为了减轻ASF组件之一的时间ASF的影响，有必要从已知位置的附近参考站获得时间校正数据。在这项研究中，进行了一项实验，以验证在时间校正数据中删除多键洛兰定位精度的离群值的影响。
The widely used global navigation satellite systems (GNSSs) are vulnerable to radio frequency interference (RFI). Long-range navigation (Loran), a terrestrial navigation system, can compensate for this weakness; however, it suffers from low positioning accuracy, and studies are under way to improve its positioning performance. One such study has proposed the multichain Loran positioning method that uses the signals of transmitting stations belonging to different chains. Although the multichain Loran positioning performance is superior to the performance of conventional methods, the additional secondary factor (ASF) can still degrade its positioning accuracy. To mitigate the effects of temporal ASF, which is one of the ASF components, it is necessary to obtain temporal correction data from a nearby reference station at a known location. In this study, an experiment is performed to verify the effect of removing the outliers in the temporal correction data on the multichain Loran positioning accuracy.
