GNSS定位授时系统在浅层节点地震采集系统中的应用  

Application of GNSS Positioning and Timing System in Shallow Node Seismic Acquisition System

作　　者：郑启航 刘勇 荣文钲 ZHENG Qihang;LIU Yong;RONG Wenzheng(School of Automation and Information Engineering,Sichuan University of Light Industry and Chemical Technology,Sichuan 644000,China;School of Geophysics,Chengdu University of Technology,Sichuan 610059,China)

机构地区：[1]四川轻化工大学自动化与信息工程学院,四川644000 [2]成都理工大学地球物理学院,四川610059

出　　处：《电子技术（上海）》2024年第3期90-93,共4页Electronic Technology

基　　金：2022年省级转移支付重点研发项目(22ZFSHFZ0001);四川轻化工大学人才引进项目(2021RC11)。

摘　　要：阐述针对无线节点地震采集系统在无采集站、无线缆,各个节点独自工作特点,采用GNSS(Global Navigation Satellite System)定位授时系统,实现各个无线节点地震采集系统之间时钟同步。分析GNSS定位授时技术原理,并基于Cortex-M7嵌入式系统为主控单元,以S1216-BD为GNSS授时定位芯片为GPS模块,完成授时同步功能,并在上位机实验中得到标准协调世界时(Coordinated Universal Time,UTC),实际中验证其授时精度。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.

关 键 词：GNSS授时 S1216-BD 地震采集系统 

分 类 号：TN966[电子电信—信号与信息处理]