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在数字地震仪月检程序中,相位一致性和畸变计算的方法较多。在PDP11-45机上,我们使用了几种方法进行处理,现将各方法简介如下,并就其优劣提出一些看法。一、相位一致性处理相位一致性是求每一道与该张记录N道平均值之间的相位移。即在某一时间(一般取0.5秒之后)求各讯号道的零点(或峰值)时间T_1(加上扫描采样时差)和所有讯号道零点平均时间之差。
In the digital seismograph monthly inspection program, there are many ways to calculate the phase consistency and distortion. On the PDP11-45, we used several methods to deal with them. We will briefly introduce the methods below and provide some opinions on their merits. First, the phase consistency of the phase consistency is to find each channel with the average of N records of the phase shift between. That is, at a certain time (usually after 0.5 second), seek the difference between the zero (or peak) time T_1 of each signal track (plus the sampling time difference of scanning) and the average time of zero of all signal channels.