EGU2020-9663
https://doi.org/10.5194/egusphere-egu2020-9663
EGU General Assembly 2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Improving the antenna performance for Zenith Tropospheric Delay estimations with consumer-grade antennas and a low-cost dual-frequency receiver

Andreas Krietemeyer, Hans van der Marel, Marie-claire ten Veldhuis, and Nick van de Giesen
Andreas Krietemeyer et al.
  • Delft University of Technology, Faculty of Civil Engineering, 2628CN Delft, the Netherlands (a.krietemeyer@tudelft.nl)

The recent release of mass-marked dual-frequency receivers opens up the opportunity to facilitate the cost-efficient estimation of Zenith Tropospheric Delays (ZTDs) from Global Navigation Satellite System (GNSS) observations. We present results of ZTD estimations from a low-cost dual-frequency GNSS receiver (U-blox ZED-F9) equipped with a range of different quality and priced antennas. It is demonstrated that the receiver itself is able to produce high quality ZTD estimations with higher grade antennas. However, the noise introduced by applying the ionosphere-free linear combination in Precise Point Positioning (PPP), makes the low-cost antenna performance initially a major challenge. With Root Mean Square Errors (RMSE) between 15 mm and 24 mm for low-cost antennas the results were at first not adequate for meteorological purposes. We demonstrate an easy-to-apply relative antenna calibration that increased the ZTD accuracy significantly for the tested low-cost antennas. After applying antenna corrections the error is reduced to a level that is adequate for meteorological applications (RMSE ~4 mm).

How to cite: Krietemeyer, A., van der Marel, H., ten Veldhuis, M., and van de Giesen, N.: Improving the antenna performance for Zenith Tropospheric Delay estimations with consumer-grade antennas and a low-cost dual-frequency receiver, EGU General Assembly 2020, Online, 4–8 May 2020, EGU2020-9663, https://doi.org/10.5194/egusphere-egu2020-9663, 2020

Displays

Display file