摘要
开展天地一体化地震观测是目前推动地震短临科学研究取得突破的重要途径之一。以卫星观测为主要手段的空间对地观测技术是实现对我国及临区进行地震电磁效应高精度、大范围和大动态连续观测的有效途径,并且为地震短临预报开创空基监测的新思路。地面传输系统是连接地震电磁卫星各应用系统之间的重要桥梁和纽带。它的科学设计是地震电磁卫星项目建设的基础。本文拟从国内外发展现状、系统建设指导思想、系统组成、链路功能描述、系统运行性能指标等方面对我国即将建设的地震电磁卫星地面传输系统进行简要分析介绍,从而为地震电磁卫星地面传输系统初步设计的完成提供一个基本框架。
Developing air-ground seismic observation is one of the most important approach for promoting scientific research to current short-term earthquake prediction. Satellite observations as a main means for Space Earth observation technology can implement an effective way of continuous observation to seismic electromagnetic effects of our country and the adjacent region in high-precision, large dynamic range, and it create a new space-based monitoring ideas for short-term earthquake prediction. Terrestrial transmission systems are important bridge and link for connecting others of seismic electromagnetic satellite application systems. Its scientific design is the base of electromagnetic satellite project. In this paper, we Briefly analyzed and introduced the developing status quo at home and abroad, the guiding ideology of the system construction, system composition, the functional description of system links, system performance index. This provided a basic framework For the completion of the preliminary design to seismic electromagnetic satellite ground transmission system.
出处
《防灾减灾学报》
2013年第4期40-44,共5页
Journal of Disaster Prevention And Reduction
关键词
天地一体化观测
空基监测
地面传输系统
SDH
VSAT
Integration of air-ground observation
Space-based monitoring
Terrestrial transmission systems
SDH (Synchronous Digital Hierarchy)
VSAT (Very Small Aperture Terminal)