Consumer GNSS Receiver Performance for Position and Trajectory Length Estimation

Abstract

This research investigates the performance of handheld and wristwatch consumer grade GNSS receivers for absolute position determination, trajectory length estimation and cumulated height ascent and descent under ideal line of sight conditions and non-line of sight flat and mountainous environments. Experiments were also performed to demonstrate the capability of carrier phase positioning for the same purpose in line of sight conditions. Many receivers were tested to analyze how they react to various scenarios and what challenges and limitations arise in the process. These scenarios consisted of straight flat line of sight trajectories underneath forestry canopy on a rigorous back and forth straight trajectory segment and hiking trails in mountainous and partly forested areas.