Evaluation of Self-Developed Low-Cost GNSS Receivers for Cadastral Surveying Using RTK Techniques

Khai Cong Pham

Abstract: This study evaluates the performance of a self-developed low-cost Global Navigation Satellite System receiver for cadastral surveying using real-time kinematic techniques. The receiver is based on U-blox hardware and operates with a single continuously operating reference station over short baselines. Field experiments were conducted to compare positioning accuracy with a commercial geodetic receiver. Results indicate that the developed receiver achieves centimeter-level accuracy, with a maximum coordinate difference of 9.8 cm over a baseline of 8.74 km. The findings demonstrate that low-cost GNSS receivers can provide reliable positioning performance for cadastral applications, offering a cost-effective alternative to conventional systems.

Keywords: GNSS, CORS, RTK techniques, Low-cost GNSS Receivers, Positioning accuracy evaluation, Cadastral surveying