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Interrogation Rate Measurements of Distance Measuring Equipment in Air Navigation System

机译：空中导航系统中测距设备的询问率测量

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Performance-based navigation is grounded on wide usage of a pair of Distance Measuring Equipment (DME) as one of the alternative positioning methods on-board of an airplane in case of primary system malfunction. The flight measurement system automatically detects the most optimal pair of ground equipment to support positioning with high performance. A variety of available algorithms of DME selection logic may increase workload of some elements of the navigational aids network, due to the limited capacity of each transponder. In the paper, we propose a passive system for interrogation rate measurements and statistical analysis of navigational aids ground network performance. The system includes two software defined radios. One of them is used for receiving and processing of interrogation signals with DME capacity estimation. Another one detects air traffic data by receiving and decoding messages under automatic dependent surveillance broadcast. The interrogation rate in channels of Ukrainian navigational aids network has been measured and reply efficiency was estimated.
机译：基于性能的导航基于一对测距设备（DME）的广泛使用，这是主要系统出现故障时飞机机载替代定位方法之一。飞行测量系统自动检测最优化的地面设备对，以支持高性能的定位。由于每个应答器的容量有限，DME选择逻辑的各种可用算法可能会增加导航辅助网络某些元素的工作量。在本文中，我们提出了一种用于询问速率测量和导航辅助地面网络性能统计分析的无源系统。该系统包括两个软件定义的无线电。其中之一用于通过DME容量估计接收和处理询问信号。另一个通过在自动相关监视广播下接收和解码消息来检测空中交通数据。测量了乌克兰导航设备网络频道中的询问率，并估计了回复效率。

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