Application of GNSS Positioning and Timing System in Shallow Node Seismic Acquisition System
This paper the characteristics of wireless node seismic acquisition systems in the absence of acquisition stations,cables,and independent operation of each node.GNSS(Global Navigation Satellite System)positioning and timing system is adopted to achieve clock synchronization between wireless node seismic acquisition systems.It analyzes the principle of GNSS positioning and timing technology,and is based on the Cortex-M7 embedded system as the main control unit,with S1216-BD as the GNSS timing and positioning chip as the GPS module,to complete the timing synchronization function.Standard Coordinated Universal Time(UTC)is obtained in the upper computer experiment,and its timing accuracy is verified in practice.
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