Positioning performance of GNSS-PPP and PPP-AR methods for determining the vertical displacements

Akpınar B.

SURVEY REVIEW, cilt.55, sa.388, ss.68-74, 2023 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 55 Sayı: 388
  • Basım Tarihi: 2023
  • Doi Numarası: 10.1080/00396265.2021.2010018
  • Dergi Adı: SURVEY REVIEW
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Environment Index, Geobase, INSPEC
  • Sayfa Sayıları: ss.68-74
  • Anahtar Kelimeler: GNNS, PPP, PPP-AR, Vertical displacements, GPS, DEFORMATION, RESOLUTION, ACCURACY, SERVICES, STATION
  • Yıldız Teknik Üniversitesi Adresli: Evet

Özet

This study investigates the accuracy of vertical displacements monitored by Global Navigation Satellite Systems (GNSS) precise point positioning (PPP) with float-ambiguity solution and with ambiguity resolution (PPP-AR). For this purpose, a simulation was designed. The static GNSS observations were collected at a test point during different observation times over seven periods involving vertical displacements produced with a precision of less than one mm. Each set of GNSS observations was processed with both GNSS-PPP and PPP-AR methods. The results revealed that RMS values of PPP-AR solutions are about twice better than RMS values of PPP solution for all observation times and all vertical displacement values.