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Network localization and synchronization of peer sensor stations in a wireless geolocation network

机译:无线地理位置网络中对等传感器站的网络定位和同步

摘要

Transmitters are located with a network of sensors by measuring signal characteristics at multiple known locations and processing these measurements at a central node. The sensors communicate their location to the central node along with measured characteristics of the transmitter's signal, and may be required to synchronize with other sensors. Often, GNSS receivers are utilized to locate and synchronize the sensors. However, the GNSS signals may be attenuated by obstructions. In this case, the sensors determine their location by making ranging measurements with sensors that can receive the GNSS signals. The waveform for the wireless backhaul permits this ranging. Additionally, many sensors can determine their location and time synchronize with the geolocation network through reception of signals from other sensors even if they do not have a direct connection to sensors that know their location and are time synchronized.
机译:通过在多个已知位置测量信号特性并在中央节点处处理这些测量值,将变送器与传感器网络一起定位。传感器将其位置信息与发射器信号的测量特性一起传送到中心节点,并且可能需要与其他传感器同步。通常,GNSS接收器用于定位和同步传感器。但是,GNSS信号可能会被障碍物衰减。在这种情况下,传感器通过使用可以接收GNSS信号的传感器进行测距来确定其位置。无线回传的波形允许此范围。另外,即使许多传感器没有直接连接到知道其位置并已时间同步的传感器,也可以通过接收来自其他传感器的信号来确定其位置和时间与地理位置网络的时间同步。

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