The aim of the new generation of Global Geodetic Observing System is a millimeter-level
accuracy in positioning, with a crucial role to be played by Global Navigation Satellites …

The site locations of real-time Global navigation satellite system (GNSS) monitoring are
usually located in a canyon environment, where the signals are frequently affected by …

Integer ambiguity resolution is the process of estimating the unknown ambiguities of carrier-
phase observables as integers. It applies to a wide range of interferometric applications of …

Stochastic models are important in global navigation satellite systems (GNSS) estimation
problems. One can achieve reliable ambiguity resolution and precise positioning only by …

How to conduct the GNSS real-time kinematic precise positioning in challenging
environments is not an easy problem. The challenging environment mainly refers to frequent …

The problem of negative variance components is probable to occur in many geodetic
applications. This problem can be avoided if non-negativity constraints on variance …

A methodology is developed to analyze a multivariate linear model, which occurs in many
geodetic and geophysical applications. Proper analysis of multivariate GPS coordinate time …

It is a crucial task to establish a precise mathematical model for global navigation satellite
system (GNSS) observations in precise positioning. Due to the spatiotemporal complexity of …

Terrestrial laser scanners (TLS) record a large number of points within a short time.
Temporal correlations between observations are unavoidable but often neglected in …

Current variance models for GPS carrier phases that take correlation due to tropospheric
turbulence into account are mathematically difficult to handle due to numerical integrations …