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Ionosphere-corrected range estimation in dual-frequency GNSS receivers

Tutkimustuotosvertaisarvioitu

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Ionosphere-corrected range estimation in dual-frequency GNSS receivers. / Skournetou, Danai; Lohan, Elena Simona.

julkaisussa: IET RADAR SONAR AND NAVIGATION, Vuosikerta 5, Nro 3, 2011, s. 215-224.

Tutkimustuotosvertaisarvioitu

Harvard

Skournetou, D & Lohan, ES 2011, 'Ionosphere-corrected range estimation in dual-frequency GNSS receivers', IET RADAR SONAR AND NAVIGATION, Vuosikerta. 5, Nro 3, Sivut 215-224. https://doi.org/10.1049/iet-rsn.2010.0037

APA

Vancouver

Author

Skournetou, Danai ; Lohan, Elena Simona. / Ionosphere-corrected range estimation in dual-frequency GNSS receivers. Julkaisussa: IET RADAR SONAR AND NAVIGATION. 2011 ; Vuosikerta 5, Nro 3. Sivut 215-224.

Bibtex - Lataa

@article{cc6e4e15345f4bdb9a0e8205a3d9c99f,
title = "Ionosphere-corrected range estimation in dual-frequency GNSS receivers",
abstract = "In Global Navigation Satellite Systems (GNSSs), the measurement of the satellite-receiver pseudorange requires the estimation of signal’s total delay. Because the accuracy of the latter affects significantly the accuracy of the final position, it is essential to consider the effect of various error sources. Ionosphere is commonly regarded as one of the most influential sources due to the fact that it can significantly delay the signal; therefore, it is of paramount importance to mitigate its effects. In single-frequency GNSS receivers, the ionospheric delay is typically found with the use of mathematical models. Because their accuracy is usually determined by their complexity, mass-market receivers employ relatively computationally simple models at the expense of limited accuracy. On the other hand, in dual-frequency receivers, we can virtually eliminate the ionospheric effects if higher order effects are ignored [1, 2]. While such an advantage has been widely recognised in the literature, the effect of the tracking error in the ionospheric correction and inherently on the range estimation is yet to be studied. In this paper, we investigate the effect of tracking error on the ionosphere-corrected range in dual-frequency receivers. We statistically analyse the performance of Least Square (LS) method and we compare it with the simulation-based. Moreover, we compare the performance of the traditional approach with LS and Constrained LS methods, as well as with a new method for range estimation, proposed by the authors. The results showed that the traditional and LS methods perform well only under the restriction of zero tracking error, while our method has the best average performance.",
author = "Danai Skournetou and Lohan, {Elena Simona}",
note = "Contribution: organisation=tlt,FACT1=1",
year = "2011",
doi = "10.1049/iet-rsn.2010.0037",
language = "English",
volume = "5",
pages = "215--224",
journal = "IET Radar, Sonar & Navigation",
issn = "1751-8784",
publisher = "Institution of Engineering and Technology",
number = "3",

}

RIS (suitable for import to EndNote) - Lataa

TY - JOUR

T1 - Ionosphere-corrected range estimation in dual-frequency GNSS receivers

AU - Skournetou, Danai

AU - Lohan, Elena Simona

N1 - Contribution: organisation=tlt,FACT1=1

PY - 2011

Y1 - 2011

N2 - In Global Navigation Satellite Systems (GNSSs), the measurement of the satellite-receiver pseudorange requires the estimation of signal’s total delay. Because the accuracy of the latter affects significantly the accuracy of the final position, it is essential to consider the effect of various error sources. Ionosphere is commonly regarded as one of the most influential sources due to the fact that it can significantly delay the signal; therefore, it is of paramount importance to mitigate its effects. In single-frequency GNSS receivers, the ionospheric delay is typically found with the use of mathematical models. Because their accuracy is usually determined by their complexity, mass-market receivers employ relatively computationally simple models at the expense of limited accuracy. On the other hand, in dual-frequency receivers, we can virtually eliminate the ionospheric effects if higher order effects are ignored [1, 2]. While such an advantage has been widely recognised in the literature, the effect of the tracking error in the ionospheric correction and inherently on the range estimation is yet to be studied. In this paper, we investigate the effect of tracking error on the ionosphere-corrected range in dual-frequency receivers. We statistically analyse the performance of Least Square (LS) method and we compare it with the simulation-based. Moreover, we compare the performance of the traditional approach with LS and Constrained LS methods, as well as with a new method for range estimation, proposed by the authors. The results showed that the traditional and LS methods perform well only under the restriction of zero tracking error, while our method has the best average performance.

AB - In Global Navigation Satellite Systems (GNSSs), the measurement of the satellite-receiver pseudorange requires the estimation of signal’s total delay. Because the accuracy of the latter affects significantly the accuracy of the final position, it is essential to consider the effect of various error sources. Ionosphere is commonly regarded as one of the most influential sources due to the fact that it can significantly delay the signal; therefore, it is of paramount importance to mitigate its effects. In single-frequency GNSS receivers, the ionospheric delay is typically found with the use of mathematical models. Because their accuracy is usually determined by their complexity, mass-market receivers employ relatively computationally simple models at the expense of limited accuracy. On the other hand, in dual-frequency receivers, we can virtually eliminate the ionospheric effects if higher order effects are ignored [1, 2]. While such an advantage has been widely recognised in the literature, the effect of the tracking error in the ionospheric correction and inherently on the range estimation is yet to be studied. In this paper, we investigate the effect of tracking error on the ionosphere-corrected range in dual-frequency receivers. We statistically analyse the performance of Least Square (LS) method and we compare it with the simulation-based. Moreover, we compare the performance of the traditional approach with LS and Constrained LS methods, as well as with a new method for range estimation, proposed by the authors. The results showed that the traditional and LS methods perform well only under the restriction of zero tracking error, while our method has the best average performance.

U2 - 10.1049/iet-rsn.2010.0037

DO - 10.1049/iet-rsn.2010.0037

M3 - Article

VL - 5

SP - 215

EP - 224

JO - IET Radar, Sonar & Navigation

JF - IET Radar, Sonar & Navigation

SN - 1751-8784

IS - 3

ER -