Analysis of the performance of the Galileo high accuracy service (HAS) using low-cost GNSS receivers for real-time monitoring of dynamic deformations

Evaluating the Rover-Side Performance of a Low-Cost GNSS Station for High-Accuracy Positioning and ZTD Estimation

Abstract. The densification of GNSS Continuously Operating Reference Station (CORS) networks in mountainous regions is constrained by the high cost of geodetic-grade equipment. Low-cost (LC) multi-frequency GNSS receivers offer a viable alternative, yet their performance in challenging high-altitude Alpine environments...

Comparative Performance of Real-Time GNSS Positioning Solutions for Marine Applications Under Different Correction Strategies

Accurate and reliable positioning is a fundamental requirement for marine applications, particularly in hydrographic surveying, where real-time data acquisition is essential. Despite recent advances in Global Navigation Satellite System (GNSS) technologies, the comparative performance of different real-time correction...

A high-precision shipborne strapdown gravimetry method adaptively robust to global navigation satellite system signal anomalies

The signal anomalies of global navigation satellite system (GNSS) are the key factors for the performance of shipborne strapdown gravimetry. In order to obtain reliable gravity information in real-time and at low operating cost in the conditions of signal outages or interference, we show a high-precision strapdown gr...

Performance evaluation of GPS and BeiDou hybrid positioning using a low cost GNSS receiver in Nigeria

This study evaluates the performance of Global Positioning System (GPS)-only, BeiDou-only, and hybridized GPS+BeiDou Global Navigation Satellite System (GNSS) constellations in Nigeria, with emphasis on positional stability and the benefits of multi-constellation integration. A dual-frequency u-blox ZED-F9P GNSS receiv...

Comparative assessment of GNSS- and GACOS-based tropospheric corrections for InSAR-derived surface deformation: a case study of the 2020 Elazığ–Sivrice earthquake

Enhancing the continuity and robustness of Galileo HAS PPP time transfer with a novel adaptive clock model

Precise point positioning (PPP) is a cornerstone technology for delivering high-precision spatiotemporal transfer in Global Navigation Satellite Systems (GNSSs). Although the Galileo high accuracy service (HAS) improves static PPP timing and time transfer, practical applications remain limited by observation noise, tim...