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本文提出了具有共同斜率不同截距的多条测线的“综合回归分析”方法.设x,y满足线性关系: Y=KX+C_i i=1,2,…,N则由最小二乘原理解出综合回归系数K和C_i,及其标准差的代数表达式. 选取苏、鲁、豫、皖、冀、浙六省及其附近地区,19个地震80个台站的短周期DD-1地震仪记录.用综合回归分析法测定了“波传播速度为3.54km/s,约1秒Lg波埃里相(LG)的滞弹性衰减系数γ_(Lg)=0.00435±0.00010km~(-1),Lg非埃里相(MAX)的γ_(max)=0.00305±0.00010km~(-1).前者即为介质的衰减系数;后者具有统计的意义,可用于最大震相震级公式的建立. 计算中使用了LGZ,LGH,MXZ,MXH四个震相,各近600组振幅数据,和555组走时数据。震中距范围约为50—1100km.
In this paper, we propose an “integrated regression analysis” method with multiple lines with different intercepts and slopes. Let x and y satisfy the linear relationship: Y = KX + C i = 1,2, ..., Understand the comprehensive regression coefficients K and C_i, and their algebraic expressions of standard deviations.Select the short-period DD-1 of 80 stations of 19 earthquakes in and around the provinces of Jiangsu, Shandong, Henan, Anhui, Hebei and Zhejiang, Seismic records were recorded. The "anelastic attenuation coefficient γ Lg of Lg-wave phase (Lg) = 0.00435 ± 0.00010km -1 ), Γgmax of Lg non-erie (MAX) = 0.00305 ± 0.00010km -1 .The former is the attenuation coefficient of the medium, and the latter is of statistical significance, which can be used to establish the maximum magnitude formula The calculation uses four seismic phases LGZ, LGH, MXZ and MXH, nearly 600 sets of amplitude data and 555 sets of travel time data.The epicentral distance range is about 50-1100km.