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Composite GNSS Signal Acquisition over Multiple Code Periods

机译:多个代码周期内的复合GNSS信号采集

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The new signals employed by modern global navigation satellite system (GNSS) will be characterized by a data/pilot structure and by the presence of secondary codes. These innovations require special acquisition techniques for efficiently recovering all the transmitted power and dealing with the problem of sign transitions. In this paper three integration strategies, noncoherent, semi-coherent, and differentially coherent integrations, are analyzed for the joint acquisition of data and pilot signals over multiple primary code periods. Each strategy is statistically characterized and false alarm and detection probabilities are provided. To the best of our knowledge the characterization and comparison of these algorithms are new. Monte Carlo simulations and real data analysis demonstrate the accuracy of the proposed model.
机译:现代全球导航卫星系统(GNSS)采用的新信号将以数据/飞行员结构和存在次要代码为特征。这些创新需要特殊的采集技术,以有效地恢复所有发射功率并处理符号转换问题。本文分析了三种集成策略,即非相干,半相干和差分相干集成,以在多个主码周期内联合采集数据和导频信号。每种策略都有统计特征,并提供错误警报和检测概率。据我们所知,这些算法的特性和比较是新的。蒙特卡洛模拟和真实数据分析证明了所提出模型的准确性。

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