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Off-line synchronization of measurements based on a common pseudorandom binary signal

机译：基于公共伪随机二进制信号的离线测量同步

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Postprocessing (or off line) synchronization methods rely on some overlap of information between two or more simultaneous measurements. The methods vary in the amount of explicit data needed to record the overlap: on the one hand, the full recording of an (absolute) time source for each measurement or, on the other hand, the reliance on information overlap of different parameters in the measurements. Whenever it is impossible to record the time from a central clock in all the simultaneous measurements, it is often possible to record a simple common signal. Using a binary pseudorandom noise (PRN) code to modulate the common signal enhances extraction of relative time information. The simplicity of this binary code makes it suitable for recording on various media (digitally or within audio and video streams) without the requirement for specialized and/or complex converters. The PRN technique has been applied successfully by NLR in several projects executed in a range of environments over the last decade and has been shown to provide time difference information with high precision.
机译：后处理（或离线）同步方法依赖于两个或多个同时测量之间信息的某些重叠。这些方法在记录重叠所需的显式数据量方面有所不同：一方面，每次测量的完整（绝对）时间源的完整记录；另一方面，依赖于不同参数中信息重叠的信息测量。只要不可能在所有同时测量中记录来自中央时钟的时间，通常就可以记录一个简单的公共信号。使用二进制伪随机噪声（PRN）码调制公共信号可增强相对时间信息的提取。该二进制代码的简单性使其适用于在各种媒体（数字或音频和视频流中）上进行记录，而无需专门和/或复杂的转换器。在过去的十年中，PNR技术已成功地由NLR应用于在各种环境中执行的多个项目中，并且已显示出可提供高精度的时差信息。

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