This analysis examines GNSS heave measurements in controlled conditions, indicating the RTK mode's superior accuracy amidst potential signal challenges.
Key Points
GNSS-based heave estimation shows effectiveness, yet precision is limited by sensor characteristics.
RTK mode yielded the best results, with a deviation of 2.5% from the reference signal for vertical measurements.
The experiment utilized a controlled pendulum approach to simulate wave motion, measuring heave with multiple GNSS receivers.
Improvements are needed in GNSS velocity precision and signal reliability for more stable measurements in marine scenarios.