SEG-D格式头段中MP值与系统灵敏度关系讨论  

Discussing the Relationship Between the System Sensitivity of Acquisition System and MPValue of SEG-D Format

作　　者：李艳青[1] 陈曦[1] 

机构地区：[1]中海油田服务股份有限公司物探研究院,天津塘沽300451

出　　处：《工程地球物理学报》2015年第3期390-394,共5页Chinese Journal of Engineering Geophysics

摘　　要：在分析了Seg-D标准格式的基础上,得出了反换算系数(MP值)的具体定义,并对行业标准中反换算系数(MP值)在不同的格式版本中的具体存储方式进行了总结。拓展灵敏度这一物理概念的理解,将其看成是采集系统输入与输出之间的传递函数,提出了系统灵敏度的概念,将采集系统设计的关键参数融合到系统灵敏度中,建立了采集系统设计公式,结合实际的仪器设计建立系统灵敏度与反换算系数(MP值)之间的联系,进而讨论了综合考虑采集系统的前放增益、模数转换芯片量程和数据的存储格式设计MP值的重要性。Based on the analysis of the standard format of SEG-D, the anti-conversion factor （MP value） of specific definitions and the storage method of anti-conversion factor （MP value） of the specific storage are summarized and analyzed in different versions of SEG-D formats. Based on regarding sensitivity as transfer function of input and output, the con- cept of system sensitivity is defined. In the definition of the system sensitivity, various fac- tors that influence the design of MP value are considered. Then the formula that design ac- quisition system is established. Finally, the importance of comprehensively designing MP value is discussed based on preamplifier, range of A/D and storage format.

关 键 词：反换算系数 系统灵敏度 

分 类 号：P631.4[天文地球—地质矿产勘探]