The optimization of GPS positioning using response surface methodology

Şişman, Yasemin

doi:10.1007/s12517-013-0834-4

Cited by 7 publications

(2 citation statements)

References 23 publications

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“…As research shows, minimal elevation mask is one of the factors that influence the accuracy of measurements the most [31]. Each of GPS-only, GLONASS-only and GNSS processing were made in three different minimal elevation cut-off angles: 10°, 25° and 30°.…”

Section: Methodsmentioning

confidence: 99%

GPS-only, GLONASS-only and Combined GPS+GLONASS Absolute Positioning under Different Sky View Conditions

Maciuk

2018

Teh. vjesn.

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In recent years GNSS measurements techniques obtained a majority role in civil engineering and other technical fields. An example of this is the monitoring of both natural phenomena and manmade constructions. The main advantages of satellite positioning, as opposite to classical surveying techniques like levelling or total stations, are continuous long term observations and economic advantage, due to the lack of measurement crew. Currently, apart from GPS, other satellite systems in use like GLONASS or Galileo are becoming more important. Together with development of GNSS measurements for satellite positioning in open areas, also urban and mountainous areas can be measured. This kind of areas was excluded from measurements with single GNSS system, due to the lack of the required minimum number of visible satellites. Multi-GNSS (hybrid, integrated-usage of more than one satellite navigation system in measurements) positioning, currently providing more than 80 active satellites, opens new grounds for satellite measurements. Among measurement methods PPP is the most developing one since the beginning of 21 st century. Main PPP advantages are: independence from reference station, lack of limitation of use to certain areas and global coverage with consistent, homogenous solutions. The paper shows the results of 90-days continuous static observations processed with the usage of PPP technique on simulated different sky view conditions. Measurements were made on points with known coordinates as a construction simulation. The data were processed in three modes: GPS-only, GLONASS-only and hybrid GNSS (GPS+GLONASS) using three different elevation cutoff angles. Accuracy analyses were carried out on the basis of final, daily EPN solutions at the observation time.

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Section: Methodsmentioning

confidence: 99%

GPS-only, GLONASS-only and Combined GPS+GLONASS Absolute Positioning under Different Sky View Conditions

Maciuk

2018

Teh. vjesn.

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“…The objective of RSM is to optimize response variable which is affected by experimental factors. There are two main types of Response Surface Designs: 1) Central Composite Designs (Coruh and Elevli, 2014;Arslan et al, 2014;Coruh and Elevli, 2015;Çetintaş and Bingöl, 2016) and 2) Box-Behnken Designs (Çoruh et al, 2012;Sisman, 2014;Sisman and Sisman, 2016).…”

Section: Introductionmentioning

confidence: 99%

Optimization study of adsorption of crystal violet and congo red onto sepiolite and clinoptiolite

2017

Global NEST Journal

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The purpose of this study was to investigate the adsorption properties of locally available sepiolite and clinoptilolite materials as adsorbents for the removal of crystal violet and congo red dye ions from aqueous solution. Previous experiments have revealed that two variables, concentration and adsorbent dosage, have a significant effect on removal efficiency. In order to find the set of operating conditions for these variables that result in the best removal efficiency, central composite design of experiments was utilized. The results showed that sepiolite is a suitable material with 99% removal efficiency for the adsorption of both crystal violet and congo red from aqueous solution. However, in spite of clinoptilolite is also a suitable adsorbent for crystal violet, removal efficiency of congo red is rather low.

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Impact of terrain complexity on the accuracy of calculations of river channel storage volume derived from measurements of underwater topography

Zhang

Yuan

2015

Arab J Geosci

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The optimization of GPS positioning using response surface methodology

Cited by 7 publications

References 23 publications

GPS-only, GLONASS-only and Combined GPS+GLONASS Absolute Positioning under Different Sky View Conditions

GPS-only, GLONASS-only and Combined GPS+GLONASS Absolute Positioning under Different Sky View Conditions

Optimization study of adsorption of crystal violet and congo red onto sepiolite and clinoptiolite

Impact of terrain complexity on the accuracy of calculations of river channel storage volume derived from measurements of underwater topography

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