Emergency Direction Supervisory System Based On Beidou / GPS / BGAN Satellite Technology
基于北斗/GPS/BGAN卫星技术的应急指挥监控系统
A design of low cost antenna for BGAN mobile ground terminal is presented in this paper .
本文提出了一种适用于BGAN地面移动终端低成本天线的设计方案。
bgan