E. Lee's scientific contributions

Publications (3)

Article
This paper describes a multipath estimation method for GPS (Global Positioning System) dual frequency carrier phase measurements. Multipath is a major error source in high precision GPS applications, i.e., carrier phase measurements for precise positioning and attitude determinations. In order to estimate and remove multipath at carrier phase measu...
Article
This paper describes the development of a method of multipath mitigation of GPS (Global Positioning System) carrier phase measurement. Multipath is a major source of error in high precision GPS static and kinematic differential positioning. Multipath accounts for most of the total error budget in carrier phase measurements in an attitude determinat...
Article
GPS can give precise positioning information of sub-centimeter. But it needs carrier phase measurement and resolving carrier ambiguity. Almost all resolving algorithms use searching technique. However, it needs pre-filter for float ambiguity estimation. Kalman filter is used to estimate float ambiguity for searching area fixing. It only can handle...