高性能水下地震数据采集系统设计与实现
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摘要
针对高分辨海上石油勘探中的水下地震信号的特点和采集要求,采用Σ-Δ结构ADC和数字抽取滤波器设计了高性能、高可靠性的水下拖缆数据采集系统。FPGA逻辑实现了对分布式数据采集的实时控制和流水线结构的远距离数据传输。
A reliable high performance marine seismic data acquisition system for offshore oil exploration was designed using Σ-Δ analog to digital converter and digital decimation filter techniques.Real time system control and long distance data pipeline transmission were implemented with FPGA.
A reliable high performance marine seismic data acquisition system for offshore oil exploration was designed using Σ-Δ analog to digital converter and digital decimation filter techniques.Real time system control and long distance data pipeline transmission were implemented with FPGA.
引文
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[11]何汉漪.海上高分辨率地震技术及其应用[M].北京:地质出版社,2001:97-99.
[2]黄旭日.国外时移地震技术的研究状况[J].勘探地球物理进展,2003,26(1):7-12.Huang Xu-ri.A review of time-lapse seismic tech-niques abroad[J].Progress in Exploration Geophys-ics,2003,26(1):7-12.
[3]Cirrus Logic.High-Z programmable gain differentialamplifier[DB/OL].Cirrus Logic,Inc 2003.
[4]孙传友,潘正良.地震勘探仪器原理[M].北京:石油大学出版社,1996:5-6.
[5]Norsworthy S R,Schreier R,Temes G C.Delta-sig-ma data converters,theory,design and simulation[M].New York:IEEE Press,1997.
[6]Cirrus Logic.Low-power high-performanceΣ-Δmodulators[DB/OL].Cirrus Logic,Inc,2001.
[7]Cirrus Logic.Low power multi-channel decimationfilter[DB/OL].Cirrus Logic,Inc,2004.
[8]Cirrus Logic.Low-power high-performanceΣ-ΔtestDAC[DB/OL].Cirrus Logic,Inc,2003.
[9]Society of Exploration Geophysicists(SEG).Sub-committee of the technical standards committee ondigital seismic recorder specifications[S].DigitalSeismic Recorder Specification Standards,1988.
[10]程敬原,宋克柱,杨俊峰.时移地震数据采集和记录系统中的单缆测试系统设计[J].吉林大学学报:工学版,2006,36(2):239-241.Cheng Jing-yuan,Song Ke-zhu,Yang Jun-feng.Sin-gle-cable checking system for time-lapse marine seis-mic data acquisition and recording system[J].Jour-nal of Jilin University(Engineering and TechnologyEdition),2006,36(2):239-241.
[11]何汉漪.海上高分辨率地震技术及其应用[M].北京:地质出版社,2001:97-99.
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