How automatic identification system (AIS) antenna setup affects AIS signal quality
How automatic identification system (AIS) antenna setup affects AIS signal quality
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DOI：
10.1016/j.oceaneng.2015.03.017
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发表时间：
2015-05
影响因子：
5
通讯作者：
Martin Hering-Bertram;L. Linsen
中科院分区：
文献类型：
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作者：
Martin Hering-Bertram;L. Linsen
AIS主要用于船舶和AIS基站之间交换不同的船舶数据。对于海员来说，AIS数据已成为雷达数据的有益补充，因为通过AIS提供额外信息支持人工避碰。此外，AIS允许实现路线预测算法。然而，AIS信息丢失已经被一些影响和限制AIS使用的研究所证实，特别是在船舶预测算法中。有关自组织时分多址（SOTDMA）算法的几个评估和模拟表明，AIS消息丢失所造成的系统过载是不太可能的。然而，与SOTDMA评估相反，没有关于VHF介质和AIS天线设置对AIS接收速率的影响的评估。因此，我们打算通过使用高质量的AIS硬件和AIS天线安装，根据IMO指南，以确定VHF对接收率的影响，以记录和评估德国搜救船上的AIS数据。通过使用两种不同的天线，我们评估的意义的天线高度，以及一般的天线设置的AIS消息的接收率，并显示测量的接收率的船舶预测算法的影响。
The AIS is mostly used to exchange different vessel data between vessels and AIS base stations. For mariners AIS data have become a useful complement to radar data since manual collision avoidance is supported by providing additional information via AIS. Furthermore AIS allows for implementing course prediction algorithms. However, AIS message losses have been confirmed by several studies affecting and restricting the AIS usage especially within vessel prediction algorithms. Several evaluations and simulations concerning the Self-Organized Time Division Multiple Access (SOTDMA) algorithm show that an AIS message loss caused by system overload is unlikely. However, in contrast to the SOTDMA evaluations there are no evaluations about the influence of the VHF medium and the AIS antenna setup on the AIS reception rate. Therefore, we intend to identify the VHF influence on the reception rate by using high quality AIS hardware and AIS antenna installations according to IMO guidelines to record and evaluate AIS data on a German Search and Rescue vessel. By using two different antennas we evaluate the meaning of the antenna height as well as of the general antenna setup for the AIS message reception rate and show the impact of measured reception rates for vessel prediction algorithms.