Velocity estimation performance of GNSS online services (APPS and AUSPOS)

Gökdaş, Ömer; Ozludemir, M. T.

doi:10.1080/00396265.2020.1809233

Cited by 6 publications

(2 citation statements)

References 14 publications

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“…Bağıl ve Hassas Mutlak Konum Belirleme (Precise Point Positioning, PPP) tekniklerini kullanan web tabanlı servislerin konum belirleme doğruluk analizleri yerel CORS ağı verileri ile analiz edilmiştir (Öcalan, Erdoğan, & Tunalıoğlu, 2013). Yerel CORS ağının hız kestirimleri belirlenerek yerkabuğu hareketleri ile karşılaştırılmış ve web tabanlı servislerin hız kestirimindeki doğruluk analizleri yapılmıştır (Gökdaş & Özlüdemir, 2021).…”

Section: Yerel Cors Ağlarının Bilimsel çAlışmalara Katkıları Ve Entegrasyonuunclassified

Türkiye’de ulusal ve yerel sürekli gözlem yapan sabit GNSS istasyonları ağlarının mevcut durumu, standartlar ve farklı ağların entegrasyonu

Gökdaş¹,

Ozludemir²

2021

J Geod Geoinf

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Section: Yerel Cors Ağlarının Bilimsel çAlışmalara Katkıları Ve Entegrasyonuunclassified

Türkiye’de ulusal ve yerel sürekli gözlem yapan sabit GNSS istasyonları ağlarının mevcut durumu, standartlar ve farklı ağların entegrasyonu

Gökdaş¹,

Ozludemir²

2021

J Geod Geoinf

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“…KEST and PASA station coordinates were determined with BERNESE (v5.2) software (Dach et al, 2015) by using IGS stations as a reference, and these values were used as true values (Gökdaş and Özlüdemir, 2020). VRS Cartesian coordinates obtained with three different network geometries for KEST and PASA stations were subtracted from the true values determined with BERNESE software.…”

Section: Introductionmentioning

confidence: 99%

Effects of the Continuously Operating Reference Station (CORS) network on the accuracy, precision, and Time to Fix Ambiguity (TTFA) performance

Gökdaş¹,

Ozludemir²

2022

Earth sci. res. j.

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The geometric design of the Continuously Operating Reference Station (CORS) network is one of the most critical factors that impact accuracy, precision, and Time to Fix Ambiguity (TTFA) performance. In this study, the authors investigate the subject of geometric design by using both local ISKI CORS and national CORS-Turkey (CORS-TR) networks, and they redesign the ISKI CORS network by increasing interstation distances. For three systems, real-time Virtual Reference Station (VRS) solutions have been obtained and tested with Analysis of Variance (ANOVA). As a result, the 8-station ISKI CORS provides the most accurate results in the vertical component. In contrast, for TTFA performance, the CORS-TR network shows worse outcomes than the others. Due to the increase in the interstation distances, the increase in the base length caused worse results in FIX solution ratios for redesigned ISKI CORS. In summary, the authors have stated that the 8-station ISKI CORS network performs better, especially regarding vertical accuracy. Furthermore, the authors state that the TTFA performance and FIX solution ratios are high, and the ISKI CORS geometric design is optimal.

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Comparing results of online GNSS services: A case study from Turkey

Gunes

Demir

2021

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Velocity estimation performance of GNSS online services (APPS and AUSPOS)

Cited by 6 publications

References 14 publications

Türkiye’de ulusal ve yerel sürekli gözlem yapan sabit GNSS istasyonları ağlarının mevcut durumu, standartlar ve farklı ağların entegrasyonu

Türkiye’de ulusal ve yerel sürekli gözlem yapan sabit GNSS istasyonları ağlarının mevcut durumu, standartlar ve farklı ağların entegrasyonu

Effects of the Continuously Operating Reference Station (CORS) network on the accuracy, precision, and Time to Fix Ambiguity (TTFA) performance

Comparing results of online GNSS services: A case study from Turkey

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