采样间隔和VTEC模型对GPS硬件延迟估计的影响分析  

ANALYSIS OF INFLUENCE OF SAMPLING INTERVAL AND VTEC MODEL ON ESTIMATION OF GPS INSTRUMENTAL BIASES

作　　者：高淑照[1] 黄丁发[1] 

机构地区：[1]西南交通大学土木工程学院,成都610031

出　　处：《大地测量与地球动力学》2010年第6期112-115,共4页Journal of Geodesy and Geodynamics

摘　　要：通过实测数据分析了采样间隔和VTEC拟合模型对解算卫星和接收机硬件延迟的影响。计算结果表明,对于连续运行的GPS观测站,采用3小时采样间隔和立方模型,可以正确解算出硬件延迟和有效减小计算量。In the calculation of ionosphere distribution,it is a key to eliminate the instrumental biases of satellite and receiver from GPS dual-frequency observations.The effects of changing sampling interval and VTEC fitting model were analyzed.The calculation results indicate that the 3-hour sampling interval and cubic fitting model are sufficient for computing the instrumental biases on continuous GPS stations.

关 键 词：电离层 硬件延迟 采样间隔 垂向电子总含量 立方模型 

分 类 号：P227[天文地球—大地测量学与测量工程]