PWV is one of the most important atmospheric parameters,which has important reference value for climate research,weather forecast,weather monitoring and so on.Inaddition to high-precision orbit determ
Space passive hydrogen maser has been applied on Chinas BeiDou Navigation Satellite System.Its long-term reliability and lifetime in orbit are significant topics needed to be verified.The repair metho
GNSS multiple antenna attitude measurement possesses three attitude determination methods,direct solution,nonlinear least squares method and linear least squares method.Normal nonlinear least squares
Recently,unmanned aerial vehicles (UAVs) have been widely used in personal entertainment,aerial photography,geographical mapping,and precision agriculture.Accurate position of the UAV is necessary for
This paper investigates and proposes a low-precision Micro Inertial Measurement Unit(MIMU)/Ultra-Wideband(UWB)integrated positioning scheme,which aims at realizing indoor high-precision and high-stabi
Carrier phase cycle slip detection and repair technology is one of the key technology of high precision GNSS positioning.Carrier phase cycle slip cause the discontinuity of carrier phase observations.
Interference measurement Technology is a well-probed space geodetic technique used to determine the Celestial Reference Frame (CRF),the Terrestrial Reference Frame (TRF) and the Earth Orientation Para
With the continuous improvement of the theory of the Ground-based GPS Meteorology and GPS-MR technology,and increases of the global GPS tracking station.