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A Multi-Technique Approach for Characterizing the SVN49 Signal Anomaly - Part 1: Receiver Tracking and IQ Constellation

机译:表征SVN49信号异常的多种技术方法-第1部分:接收器跟踪和IQ星座图

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摘要

The paper presents a characterization of the signal anomaly of SVN 49. A mathematical model is developed to relate the observed multipath to the internal signal reflection. The analyses provided in the paper are based on measurements, which have been collected during a dedicated tracking campaign with a 30m-dish antenna. Data on the L1 and L2 frequency have been collected with four different receivers. In addition, IQ samples have been recorded directly with a spectrum analyzer. The multipath combination of the receiver measurements on L1 and L2 is analyzed to demonstrate the\udeffect of the signal reflections on different correlator spacings. The capability to suppress the signal reflection with receiver's multipath mitigation methods is demonstrated. Finally, preliminary estimates of the attenuation, delay and phase-shift over elevation are obtained from an IQ sample analysis.
机译:本文介绍了SVN 49信号异常的特征。建立了一个数学模型,将观察到的多径与内部信号反射相关联。本文提供的分析基于测量值,这些测量值是在带有30m碟形天线的专门跟踪活动中收集的。 L1和L2频率的数据已通过四个不同的接收器收集。此外,IQ样本已直接通过频谱分析仪记录。分析了L1和L2上的接收器测量值的多径组合,以证明信号反射对不同相关器间隔的影响。演示了使用接收器的多径缓解方法抑制信号反射的能力。最后,从IQ样本分析中获得了衰减,延迟和高程相移的初步估计。

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