零相移低通滤波及其在固体潮观测技术中的应用

ZERO PHASESHIFT LOWPASS FILTERING AND ITS APPLICATION TO EARTH TIDE OBSERVATIONAL TECHNIQUE

本文介绍了一种适用于固体潮观测的数字滤波方式及其在单片计算机数字数据采集装置中的实现。利用这种方式在武昌固体潮台作为DZW微伽重力仪的数字记录历时近一年,获得较好的固体潮观测资料。笔者认为,上述方式有可能应用于其它观测技术中。

This paper presents that a method of digital filtering is applied to earth tide observation and realized in digital acquisition device of simgle chip microcomputer. Nearly one year a better data of earth tide observation was got by this method for digital recording of DZW μgal gravimeter in Wu Chang earth tide station. It is believed that the method given can be used in other observational techniques.