GPS差分基准站高精度基准坐标测定方法研究  

Research on the Method of Obtaining High Precision Reference Coordiate of the GPS Differential Reference Station

作　　者：张业旺[1] 李治安[1] 卢艳娥[1] 卢超[1] 

机构地区：[1]空军工程大学电讯工程学院导航工程系,西安710077

出　　处：《科学技术与工程》2012年第25期6346-6350,6361,共6页Science Technology and Engineering

摘　　要：为提高基准站基准坐标定位精度,针对基于接收机长时间观测进行等权平均确定基准坐标的直接测量法不足之处,提出利用载波相位平滑伪距改善伪距测量精度。并基于平滑伪距分别对最小二乘法、卡尔曼滤波、衰减记忆滤波三种定位模型进行仿真分析。仿真结果表明:基于载波相位平滑伪距的衰减自适应记忆滤波定位方法能够有效提高定位精度,为差分基准站获取高精度位置坐标适用方法。In order to improve the reference coordiate direct method of measurement which is based on receiving ning to obtain the referenee coordiate, the carrier phase sm positioning precision and aim at the shortcomings of the the observed data of long time and averaging the positio- oothing orange measurement precision. The three methods of localizing of tenuated memory filtering are simulated and analysis based on the pseudorange is put forward to improve the pseud- Iterative Least Square, Kalman filtering and at- carrier phase smoothing pseudorange. The simul- atin results show that the attenuated memory filtering based on the carrier phase smoothing pseudorange can effec- tively improve the position accuracy and it is suitable for obtaining the high precision reference eoordiate of GPS dif- ferential reference station.

关 键 词：差分基准站 基准坐标 载波相位平滑伪距 定位模型 精度 

分 类 号：TN967.1[电子电信—信号与信息处理]