基于PICMG2.16的数据获取系统设计
2022,30(7):240-245
摘要：针对地震勘探高同步性、大数据量和连续采集的要求,设计了一种基于PICMG2.16的地震数据获取系统。系统采用基于PICMG2.16的CPCI背板结构,使用星形同步网络及高速差分信号传输,实现了系统级的同步控制以及地震数据的高速采集传输等功能,单箱体能够支持24条缆的地震数据获取；通过星形的同步控制和数据处理方式,实现了地震数据的连续采集。重点介绍了系统的架构设计、硬件设计、同步设计、以及地震数据连续采集的实现方案。与水下系统的联合测试结果表明,数据获取系统满足海上地震勘探的同步控制及高速数据采集和处理的要求。
关键词：地震数据采集;PICMG2.16;连续采集;
Design of data acquition system based on PICMG2.16
Abstract：To meet the requirements of large amount of data and continuous acquition in seismic exploration, a seismic data acquisition system based on PICMG2.16 is designed.Synchronous control and high-speed data acquisition is realized with star synchronization network and high-speed differential signal. such as single create can support 24 cable seismic data acquisition; By the star synchronous control and special data processing, the continuous acquisition of seismic data is realized.The designs of architecture、hardware and synchronization ,and the implementation of continuous acquition in seismic exploration are introduced.The results of testing with underwater system show that it can meet the requirements of synchronization , high-speed data acquisition and processing in marine seismic exploration.
Key words：seismic data acquisition;PICMG2.16; continuous acquition
收稿日期：2022-01-20
基金项目：国家高技术研究发展计划(863计划)（2012AA09A211）
