Kriging interpolation in modelling tropospheric wet delay

This contribution implements the Kriging interpolation in predicting the tropospheric wet delays using global navigation satellite system networks. The predicted tropospheric delays can be used in strengthening the precise point positioning models and numerical weather prediction models. In order to evaluate the performances of the Kriging...

Assessing the performance of multi-GNSS PPP-RTK in the local area

The benefits of an increased number of global navigation satellite systems (GNSS) in space have been confirmed for the robustness and convergence time of standard precise point positioning (PPP) solutions, as well as improved accuracy when (most of) the ambiguities are fixed. Yet, it is still worthwhile to investigate fast and high-precision...

Development of a New Sleep Position Trainer

Obstructive Sleep Apnea Syndrome (OSAS) is characterized by periods of cessation and reduction of the nasal airflow during sleep. 2 - 4% of the western population suffers from the OSAS which enormously impacts the sleep quality and is associated with significant morbidity of other diseases. Due to its physical cause, a steady 56% of OSAS...