基于GPS时间信号的电法发送机与接收机时间同步设计  

THE SYNCHRONIZATION OF THE TRANSMITTER AND RECEIVER DESIGN BASED ON GPS

作　　者：左国青[1] 罗维斌[1] 李飞[1] 白宜诚[1] 

机构地区：[1]中南大学信息物理工程学院,湖南长沙410083

出　　处：《物探与化探》2006年第2期158-161,共4页Geophysical and Geochemical Exploration

摘　　要：为了精确测量频率域电法勘探中接收机与发送机相位差参数,引入GPS模块,利用精确的1pps作为时间参考;分析了GPS同步原理及其结构、特性;设计了在频率域电法勘探中发送机与接收机GPS时间同步电路,实现了多频激电仪接收机与发送机的精确时间同步进行高精度相位测量。In frequency domain electric exploration, the authors propose the utilization of the GPS OEM so as to improve the accuracy of signal phase estimation. 1 pps can be used as a time reference. The time synchronization of the frequency domain electric transmitter and receiver can thus be realized. This paper describes the framework, characteristics and principles of GPS in time synchronization. The frequency domain electric transmitter and receiver synchronization electrocircuit has been designed. It is concluded that the GPS time synchronization is feasible in this instrument.

关 键 词：GPS 时间同步 相位测量 频率域激电法 

分 类 号：P631[天文地球—地质矿产勘探]