Passive interference localization within the GNSS environmental monitoring system (GEMS): TDOA aspects
Passive interference localization within the GNSS environmental monitoring system (GEMS): TDOA aspects
复制标题
GNSS 环境监测系统 (GEMS) 内的无源干扰定位：TDOA 方面
DOI：
10.1007/s10291-014-0393-5
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发表时间：
2014
期刊：
影响因子：
4.9
通讯作者：
A. Dempster
中科院分区：
文献类型：
--
作者：
E. Çetin;Ryan J. R. Thompson;A. Dempster
全球定位系统（GPS）信号由于功率水平低，因此非常容易受到有意和无意来源的干扰。由于安全关键基础设施的日常运行日益依赖全球导航卫星系统，因此检测、定位和消除对全球导航卫星系统的干扰至关重要。全球导航卫星系统环境监测系统II提供了在特定区域真实的实时探测和定位干扰源的能力。它由许多空间分布的传感器节点连接到一个中央处理单元。干扰定位使用混合的到达方向（DOA）和到达时间差（TDOA）技术。我们描述了GEMS II环境，并提供了一个深入的分析和评价的时差方面的系统。在评估过程中，思博伦全球定位系统信号发生器产生的信号以及实际现场测试试验的数据被用于提供广泛的性能分析和比较，以便最终实现系统集成。
Due to their low power levels, global positioning system (GPS) signals are very susceptible to interference from intentional and unintentional sources. With ever increasing reliance on global navigation satellite systems (GNSS) for everyday operation of safety–critical infrastructure, the detection, localization and elimination of interference to GNSS is of paramount importance. The GNSS environmental monitoring system (GEMS) II provides the capability to detect and localize interferers in real time in a given area. It consists of a number of spatially distributed sensor nodes connected to a central processing unit. Interference is localized using hybrid direction-of-arrival (DOA) and time-difference-of-arrival (TDOA) techniques. We describe the GEMS II environment and provide an in-depth analysis and evaluation of the TDOA aspects of the system. During evaluation, signals generated from Spirent GPS signal generators as well as data from actual field-test trials are used to provide extensive performance analysis and comparison, with a view to final system integration.