The operative advantages obtained using dual-frequency GPS + GLONASS receivers are well known. In this paper, the aspect of accuracy advantage in the baseline and network vertex computation are investigated. This was applied to two study cases: a small-scale urban network and a small-scale continental network. The processing of data was performed in different conditions using both GPS Ll/L2 measurements, GPS+GLONASS Ll/L2 and GPS Ll/L2 plus GLONASS Ll measurements. The obtained values of baseline components were compared and the statistic parameters analysed. The results showed a good improvement in the obtained accuracy in terms of error ellipses semi-axis dimensions and in the rms height values. In the case of GPS+GLONASS LlIL2 measurements, the semi-axis of the ellipses and the ellipsoidal height rms are almost half with respect to that obtained with GPS Ll/L2 measurements.

Dual Frequency GPS+GLONASS Measurements in the Static Relative Positioning

GATTI, Marco
2000

Abstract

The operative advantages obtained using dual-frequency GPS + GLONASS receivers are well known. In this paper, the aspect of accuracy advantage in the baseline and network vertex computation are investigated. This was applied to two study cases: a small-scale urban network and a small-scale continental network. The processing of data was performed in different conditions using both GPS Ll/L2 measurements, GPS+GLONASS Ll/L2 and GPS Ll/L2 plus GLONASS Ll measurements. The obtained values of baseline components were compared and the statistic parameters analysed. The results showed a good improvement in the obtained accuracy in terms of error ellipses semi-axis dimensions and in the rms height values. In the case of GPS+GLONASS LlIL2 measurements, the semi-axis of the ellipses and the ellipsoidal height rms are almost half with respect to that obtained with GPS Ll/L2 measurements.
2000
Cefalo, Raffaela; Gatti, Marco
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/1204066
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