基于SOPC的地震数据并行采集控制器设计
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摘要
针对地震勘探仪器在多道数据并行采集控制技术上的瓶颈问题,提出基于嵌入式可编程片上系统的并行采集方案,开发了符合Avalon标准的"多道数据并行采集A/D组控制器"外设IP核,实现了多道数据严格并行采集控制,并成功应用在工程地震数据采集系统中。应用表明,该控制器能控制多道A/D转换器严格并行同步采样,具有同步精度高、非均匀误差小、通道扩展方便等优点,为地震勘探仪器高性能、低功耗、微型化设计提供了参考。
In order to solve the bottleneck of multi-channel seismic data parallel acquisition control,this paper presented a parallel acquisition solutions which was based on embedded system on a programmable chip(SOPC),and developed the peripheral IP cores named "Parallel Multi-channel Data Acquisition A/D Group Controller" which met the Avalon standard.The controller had achieved strictly control of parallel multi-channel conversion,and was applied successfully in engineering seismic data acquisition system.Practical applications have shown that the controller has the characteristics of high synchronization accuracy,low non-uniform error and convenient to expansion.
In order to solve the bottleneck of multi-channel seismic data parallel acquisition control,this paper presented a parallel acquisition solutions which was based on embedded system on a programmable chip(SOPC),and developed the peripheral IP cores named "Parallel Multi-channel Data Acquisition A/D Group Controller" which met the Avalon standard.The controller had achieved strictly control of parallel multi-channel conversion,and was applied successfully in engineering seismic data acquisition system.Practical applications have shown that the controller has the characteristics of high synchronization accuracy,low non-uniform error and convenient to expansion.
引文
[1]祖庆夕.A/D转换与地震仪的发展[J].中国煤田地质,2004,16(5):50-52.
[2]梁志国.一种非均匀采样系统采样均匀性的评价新方法[J].计量学报,2006,27(4):384-387.
[3]周立功.SOPC嵌入式系统基础教程[M].北京:北京航空航天大学出版社,2006.
[4]赵擎天.基于SOPC的多路并行同步数字信号采集系统设计[J].机械工程学院学报,2011,23(3):60-64
[2]梁志国.一种非均匀采样系统采样均匀性的评价新方法[J].计量学报,2006,27(4):384-387.
[3]周立功.SOPC嵌入式系统基础教程[M].北京:北京航空航天大学出版社,2006.
[4]赵擎天.基于SOPC的多路并行同步数字信号采集系统设计[J].机械工程学院学报,2011,23(3):60-64
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