地震数据采集器线性度不确定度评定及分析  

Evaluation and Analysis of Linearity Measurement Uncertainty of Seismic Data Acquisition Device

作　　者：郑淑梅 ZHENG Shumei(The First Monitoring and Application Center,CEA,7 Nanhuo Road,Tianjin 300180,China)

机构地区：[1]中国地震局第一监测中心,天津市300180

出　　处：《大地测量与地球动力学》2023年第3期327-330,共4页Journal of Geodesy and Geodynamics

基　　金：中国地震局地震科技星火计划(XH21052Y,XH22018YA)。

摘　　要：分别建立基于最小二乘法和端基直线法的地震数据采集器线性度模型,分析线性度不确定度的来源,给出不确定度计算公式和评定过程,对比分析最小二乘法与端基直线法在线性度不确定度评定中的差别及输入点个数对线性度不确定度评定的影响。结果表明,最小二乘法和端基直线法的线性度不确定度评定结果在同一数量级上,但后者受输入点个数的影响较小。This paper establishes the linearity models based on least squares method and terminal-based straight line method of seismic data acquisition device respectively. It analyzes the source and gives the calculation formula and the evaluation process of uncertainty. It compares and analyzes the differences between the least squares method and the terminal-based straight line method in the evaluation of linearity uncertainty and the influence of the number of input points on the evaluation of linearity uncertainty. The results show that the linearity uncertainty evaluation of the methods are on the same order of magnitude, and the terminal-based straight line method is less affected by the number of input points.

关 键 词：线性度 不确定度评定 地震数据采集器 最小二乘法 端基直线法 

分 类 号：P315[天文地球—地震学]