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本文对于计算P_nl波格林函数的广义地震射线方法进行了改进。包括:1.简化了地震射线的描述方法;2.将射线按其运动学相似性进行分组计算,从而较大地提高了计算速度;3.进一步推广用于计算SH波部分的响应。对于1983年山东菏泽地震和1985年云南禄劝地震,用综合地震图方法模拟了763型长周期地震仪的P_nl波记录,求出两个地震的断层面解答,其结果与有关研究所得该地区构造应力场的图象基本一致。
In this paper, we improve the generalized seismic ray method for calculating Pnl wave function. Including: 1. Simplify the method of describing the seismic ray; 2. The ray is grouped according to its kinematic similarity, which greatly increases the computational speed; 3. Further promote the response for calculating the SH wave part. For the 1983 Heze Earthquake in Shandong and the 1985 Luquan Earthquake in Yunnan, the P-1 wave records of the 763 long-period seismograph were simulated by a comprehensive seismogram and the fault plane solutions of the two earthquakes were obtained. The results are consistent with the results obtained from the study The image of tectonic stress field is basically the same.