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An Improved Timing Synchronization Method for Eliminating Large Doppler Shift in LEO Satellite System

机译:一种改进的时序同步方法,用于消除LEO卫星系统大量多普勒班

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Robust time and frequency synchronization is an essential requirement for initial access in LEO satellite communication systems. However, large doppler frequency shift in LEO satellite communication system severely influences the accuracy of timing synchronization estimation with Zadoff-Chu sequence. In this paper, an improved timing detection method is proposed for LEO satellite communication system, which can achieve accurate time synchronization performance in presence of large the doppler frequency shift.
机译:鲁棒时间和频率同步是Leo卫星通信系统中初始访问的基本要求。然而,Leo卫星通信系统中的大多普勒频率偏移严重影响了与Zadoff-Chu序列的定时同步估计的准确性。本文提出了一种改进的定时检测方法,用于Leo卫星通信系统,可以在大量的多普勒频移的存在下实现精确的时间同步性能。

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