APPLICATION OF ROBUSTHELMERT VARIANCE COMPONENT
ESTIMATION TO POSITION IN COMBINATION OF GPS AND BDS
1）School of Geoscience and InfoPhysics, Central South University, Changsha 410083
2）Key Laboratory of Precise Engineering of Surveying & Deformation Disaster Monitoring of Hunan Province, Changsha 410083
Abstract Helmert variance component estimation（VCE）can adjust the ratio of GPS and BDS observations adaptively. However, in case of the fact that observations is contaminated by the gross error, this model will distort the positioning result. Robust Helmert VCE, based on the IGG model Ⅲ was presented to use in the pseudorange single point position and phase relative position. The results of experiments show that the robust Helmert VCE can restrain the influence of gross errors and adjust the ratio of mixed observations reasonably, and improve the positioning accuracy and reliability.
Gao Xiao,Dai Wujiao. APPLICATION OF ROBUSTHELMERT VARIANCE COMPONENT
ESTIMATION TO POSITION IN COMBINATION OF GPS AND BDS[J]. jgg, 2014, 34(1): 173-176.
Gao Xiao,Dai Wujiao. APPLICATION OF ROBUSTHELMERT VARIANCE COMPONENT
ESTIMATION TO POSITION IN COMBINATION OF GPS AND BDS[J]. jgg, 2014, 34(1): 173-176.
