Studying the Repeatability of Measurements Obtained via Network Real-Time Kinematic Positioning at Different Times of the Day Estudio de la repetibilidad de mediciones obtenidas mediante posicionamiento cinemático de red en tiempo real para diferentes momentos del día

Gümüş K.

Ingenieria e Investigacion, cilt.44, sa.1, 2024 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 44 Sayı: 1
  • Basım Tarihi: 2024
  • Doi Numarası: 10.15446/ing.investig.105622
  • Dergi Adı: Ingenieria e Investigacion
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Fuente Academica Plus, CAB Abstracts, INSPEC, Veterinary Science Database, zbMATH, Directory of Open Access Journals, DIALNET
  • Anahtar Kelimeler: ANOVA, FKP, MAC, NRTK, static GNSS, VRS
  • Yıldız Teknik Üniversitesi Adresli: Evet

Özet

The network real-time kinematic (NRTK) positioning technique is currently used in numerous applications. The aim of this study was to better understand the process of obtaining accurate positions by statistically evaluating the significance of differences between repeated measurements for a single point at different times of the day (morning, noon, and evening) using the Virtual Reference Station (VRS), Flächen Korrektur Parameter (FKP), and Master Auxiliary Concept (MAC) correction methods. An analysis of variance (ANOVA) was used to this effect. Further analysis was carried out to determine the accuracy and precision of the coordinate differences obtained via a static GNSS (global navigation satellite system) and by averaging the repeated measurements. It was determined that the accuracy and precision of the vertical component of the coordinates were lower than that of the horizontal component. The FKP correction method yielded the best results. It was observed that the accuracy and precision of the measurements taken at noon were the lowest. The ANOVA showed that the differences between repeated measurements were statistically significant and that there were outlier measurements. The results of this study are important for NRTK users to be able to statistically evaluate different measurement configurations and obtain positions with the desired accuracy and precision.