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在地震工作中,频谱分析方法对试验、设计工作以及各种激发和接收因素的选择,有着重要的指导意义。但是,这种频谱分析工作通常是在野外获得大量资料后,到计算站集中进行处理的。它难以满足野外队对所获资料随时随地进行计算处理,以便灵活快速地指导野外工作的要求。本文通过对一个实际地震信号进行人工离散采样,编制BASIC语言计算程序,在PC-1500机上求出其振幅谱的数据和图形,并进行频谱分析。
In seismic work, the method of spectrum analysis has important guiding significance for the experiment, design work and selection of various excitation and receiving factors. However, this kind of spectrum analysis is usually concentrated in the processing station after obtaining a large amount of data in the field. It is difficult to meet the wild team on the information received anytime, anywhere in computing, in order to quickly and flexibly guide the requirements of field work. In this paper, a real seismic signal is artificially discretely sampled and a BASIC language program is compiled. The data and graphics of the amplitude spectrum are obtained on a PC-1500 and the spectrum is analyzed.