摘要
GPS可提供全天候的精确位置与定时信息,但GPS卫星信号较弱,任何障碍物都会影响其信号的接收。本系统在国家GPS重点实验室支持下,通过在GPS导航芯片Orion中添加GPRS/GSM无线通信模块来实现GPS辅助定位。经过测试,本系统在障碍物附近可以明显提高GPS导航定位的速度,且大大提高了首次定位时间,率先在我国实现了A-GPS技术的产品级开发。
GPS can provide accurate position and time information all-weather. But GPS signal is so feeble that any barrier can affect the receiving of the signal, In this system, the GPRS/GSM wireless communication module is added into the GPS navigation chip Orion to implement Assisted-GPS by the support of the national GPS emphases lab. Through testing in system, the GPS navigation speed is improved evidently near the barrier. It＇s the first product implement of A-GPS in China.
出处
《中国惯性技术学报》
EI
CSCD
2006年第4期26-29,共4页
Journal of Chinese Inertial Technology
