【摘要】 在地震监测行业,由于GPS能提供准确的公众时间,授时精度高、性能稳定、维护管理方便等特点得到了普遍应用。但在水利枢纽工程的大坝强震监测中,要想对不同坝段的测点系统进行GPS统一授时,得到更高的时间精度,却存在一定困难。为此,本文重点介绍了如何解决坝体内离坝面较远测点进行GPS精确授时问题及其涉及到的技术要点,解决方案及实施方法,并简述了GPS时间信息的获取方式,对授时过程中产生延时误差的原因进行了详细分析。更多还原

【Abstract】 Seismic monitoring in the industry, because GPS can provide accurate public time and time and high precision, stable performance, easy maintenance and management has been widely used. However, water-control project in the earthquake monitoring of the dam, to a different section of the measuring point of the GPS system time unification, but there are some difficulties, this paper focuses on how to solve the dam within the measured distance from the dam surface GPS point the problem of accurate time and techniques involved, solutions and implementation methods, and outlines the GPS time access to information by means of time delay arising in the course of the causes of error were analyzed.更多还原