摘要
针对ＧＰＳ卫星ＳＡ和ＡＳ技术的人为精度降低措施，应用多个地面基准站的ＤＧＰＳ载波相位测量模式，精确地测得了飞机在航三维实时点位、对地摄影时元和三维飞行速度；其二维点位的外部符合精度达到了±７．９ｃｍ，高程外部符合精度为±１８．
GPS kinematic carrier phase measurements can be used to determine seven dimensional state and three attitude parameters of a motional carrier such as an aircraft and low earth orbit spacecraft,on which an antenna is installed to receive GPS signals.It is known from airborne GPS test results for photogrammetry in China since 1994 that GPS carrier phase measurements in a motional environment have acquired external accuracies of ±7.9cm for two dimensional positions and ±18.1 cm for point heights.
出处
《武汉测绘科技大学学报》
CSCD
1996年第3期218-222,共5页
Geomatics and Information Science of Wuhan University
基金
国家自然科学基金和测绘科技发展基金资助项目
关键词
GPS
测量飞机
接收机
状态参数
airborne GPS receiver
GPS kinematic carrier phase measurement
multireference ground station
