1090 MHz channel capacity improvement in the Air traffic control context
1090 MHz channel capacity improvement in the Air traffic control context
复制标题
空中交通管制环境中 1090 MHz 信道容量的改进
DOI：
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发表时间：
2008
期刊：
影响因子：
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通讯作者：
F. Fiori
中科院分区：
文献类型：
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作者：
G. Galati;E. Piracci;N. Petrochilos;F. Fiori
本文主要研究通过创新的传输和解码技术来提高1090 MHz SSR信道容量。许多空中交通管制系统使用1090 MHz信道：SSR下行链路（机载转发器），ADS-B消息，TIS-B，FIS-B。我们把注意力集中在MLAT（定位）系统，有用的定位和识别转发器装备的目标（飞机和车辆）。今天的卫星接收站具有全向天线，因此考虑到飞行器交通并且包括对合作车辆的监视的扩展，接收叠加信号的可能性越来越大，特别是在高交通密度机场中。在本文中，我们展示了问题的缓解，介绍了在国际专利中提出的技术，和解码技术中提出的。分析了信道容量的提高，研究了移频分离后信号的检测和TOA估计，最后满足了EUROCAE的要求。
This paper is focused on the 1090 MHz SSR channel capacity increase by innovative transmission and decoding techniques. A lot of Air traffic control systems use the 1090 MHz channel: SSR downlink (on-board transponders), ADS-B messages, TIS-B, FIS-B. We focus the attention on the MLAT (multilateration) system, useful to localize and identify transponder-equipped targets (aircraft and vehicles). Today multilateration receiver stations have omni-directional antennae, so considering the aircrafts traffic and including the extension of surveillance to cooperating vehicles, the reception of super-imposed signals is more and more probable especially in high traffic density airports. In this paper we show the problem mitigation introducing a technique proposed in the international patent , and the decoding techniques proposed in and. We analyze the channel capacity improvement, then exploit the detection and the TOA estimation of the frequency-shifted and separated signals, and finally the EUROCAE requirements compliance.