Influence of different GPS receiver antenna calibration models on geodetic positioning

Baire, Q.; Bruyninx, C.; Legrand, J.; Pottiaux, Eric; Aerts, Wim; Defraigne, Pascale; Bergeot, Nicolas; Chevalier, Jean-Marie

doi:10.1007/s10291-013-0349-1

Cited by 31 publications

(40 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A position offset can result when the mean value is applied to the individual antenna, and the magnitude of the offset is station dependent. This was investigated by Baire et al (2014), and they have shown that the offset in the vertical component can be as large as 10 mm, which approximately corresponds to a difference of 0.5 kg m 22 in the IWV. We have carried out a similar investigation using one experimental GPS station located at Onsala Space Observatory (OSO) on the west coast of Sweden, where we processed data twice using two different antenna calibration models (IGS standard and individual calibration).…”

Section: A Changepointsmentioning

confidence: 99%

Homogenized Time Series of the Atmospheric Water Vapor Content Obtained from the GNSS Reprocessed Data

et al. 2016

View full text Add to dashboard Cite

The potential temporal shifts in the integrated water vapor (IWV) time series obtained from reprocessed data acquired from global navigation satellite systems (GNSS) were comprehensively investigated. A statistical test, the penalized maximal t test modified to account for first-order autoregressive noise in time series (PMTred), was used to identify the possible mean shifts (changepoints) in the time series of the difference between the GPS IWV and the IWV obtained from the European Centre for Medium-Range Weather Forecasts (ECMWF) interim reanalysis (ERA-Interim) data. The approach allows for identification of the changepoints not only in the GPS IWV time series but also in ERA-Interim. The IWV difference time series formed for 101 GPS sites were tested, where 47 of them were found to contain in total 62 changepoints. The results indicate that 45 detected changepoints were due to the inconsistencies in the GPS IWV time series, and 16 were related to ERA-Interim, while one point was left unverified. After the correction of the mean shifts for the GPS data, an improved consistency in the IWV trends is evident between nearby sites, while a better agreement is seen between the trends from the GPS and ERA-Interim data on a global scale. In addition, the IWV trends estimated for 47 GPS sites were compared to the corresponding IWV trends obtained from nearby homogenized radiosonde data. The correlation coefficient of the trends increases significantly by 38% after using the homogenized GPS data.

show abstract

Section: A Changepointsmentioning

confidence: 99%

Homogenized Time Series of the Atmospheric Water Vapor Content Obtained from the GNSS Reprocessed Data

et al. 2016

View full text Add to dashboard Cite

show abstract

“…They have shown that differences in PCC for various antennas can reach up to 5 mm at low elevations (from 0°t o 20°) but are usually below 2 mm (above 30°) for both GPS frequencies. Other studies in the field of individual calibrations have been carried out by the GNSS Research Group of the Royal Observatory of Belgium (ROB) (Baire et al 2014) and the Geophysics Laboratory at the University of Luxembourg (LU) (Sidorov and Teferle 2016). In these experiments, the authors used the Precise Point Positioning (PPP) method to estimate the position offset related to different receiver antenna calibration models.…”

Section: Introductionmentioning

confidence: 99%

The impact of the antenna phase center models on the coordinates in the EUREF Permanent Network

Araszkiewicz

Völksen

2016

GPS Solut

View full text Add to dashboard Cite

Precise positioning using the signals of the Global Position System requires correcting the distance between the points of reception of the signal carrier phase and the antenna reference point. Sophisticated models to account for these phase errors are available and widely in use. These models are usually based on calibrations of several antennas of the same type to derive a mean model. There is also the possibility of applying individual correction models that are derived for one single antenna, since the individual antennas may still vary by a few millimeters. We prepared two sets of station position time series to understand the impact of using type mean or individual antenna correction models. At first, we estimated the station positions using the type mean model for the antenna corrections as it is provided by the IGS. Second, the same processing strategy was used, but this time with individual antenna correction models provided they were available. Then, based on these two solutions, we evaluated how different antenna corrections impact the network alignment and subsequently station coordinates. We showed that mixing two sources of antenna phase center corrections may influence the reference frame realization. However, this impact is very small and can be reduced by an appropriate selection of reference stations. Finally, we demonstrated that for some antennas, the application of type mean or individual antenna calibration models may cause a discrepancy in the position of over 10 mm for the horizontal and vertical component. However, for most of the antennas these offsets are below 2 mm for horizontal components and below 4 mm for vertical component. Thereby, for common antennas we confirmed the results obtained by others.

show abstract

“…PPP technique is widely exploited in GNSS precise positioning and meteorology due to its efficiency and flexibility in analyzing GNSS networks with a large number of stations (Baire et al, 2014; …”

Section: Gps+glonass Ionosphere-free Observation Modelmentioning

confidence: 99%

Comprehensive assessment of positioning and zenith delay retrieval using GPS+Glonass precise point positioning

Zhou¹

2017

Acta Geodynamica Et Geomaterialia

View full text Add to dashboard Cite

Influence of different GPS receiver antenna calibration models on geodetic positioning

Cited by 31 publications

References 10 publications

Homogenized Time Series of the Atmospheric Water Vapor Content Obtained from the GNSS Reprocessed Data

Homogenized Time Series of the Atmospheric Water Vapor Content Obtained from the GNSS Reprocessed Data

The impact of the antenna phase center models on the coordinates in the EUREF Permanent Network

Comprehensive assessment of positioning and zenith delay retrieval using GPS+Glonass precise point positioning

Contact Info

Product

Resources

About