The objective of this paper is to test in a degraded environment the performances of two different type of low-cost GNSS receivers. The first one is a typical low-cost hardware: the u-blox ZED-F9P GNSS module interfaced with u-center evaluation and a commercial front-end while the second one is a Software-Defined Receiver (SDR) software developed by Centre Tecnològic Telecomunicacions Catalunya coupled with a Nuand BladeRF x40. In order to investigate the performance of the hardware involved we applied our analysis to the measurements captured in a strong multipath scenario. Four different tests have been carried out employing the two receivers and coupled with two different antennas. Results achieved shows that the employment of the more performing antenna leads to better positioning results. The DRMS (Distance Root Mean Square) of horizontal position errors decreases of about the 54% and the 40% for the SDR and the u-blox, respectively. Nonetheless, the Nuand bladeRF shows poor positioning results with respect to those obtained with u-blox. The results achieved shows that Nuand is not yet suitable for surveying purposes. The reason resides in the poor quality of the reference clock of the on-board oscillator that doesn’t assure an appropriate stability.
Positioning Domain Assessment of Multi Constellation Dual Frequency Lowcost Receivers in an Highly Degraded Scenario / Robustelli, U.; Cutugno, M.; Pugliano, G.. - 1246:(2020), pp. 3-15. (Intervento presentato al convegno 1st International Workshop in memory of Prof. Raffaele Santamaria on R3 in Geomatics: Research, Results and Review, R3GEO 2019 tenutosi a ita nel 2019) [10.1007/978-3-030-62800-0_1].
Positioning Domain Assessment of Multi Constellation Dual Frequency Lowcost Receivers in an Highly Degraded Scenario
Cutugno M.;Pugliano G.
2020
Abstract
The objective of this paper is to test in a degraded environment the performances of two different type of low-cost GNSS receivers. The first one is a typical low-cost hardware: the u-blox ZED-F9P GNSS module interfaced with u-center evaluation and a commercial front-end while the second one is a Software-Defined Receiver (SDR) software developed by Centre Tecnològic Telecomunicacions Catalunya coupled with a Nuand BladeRF x40. In order to investigate the performance of the hardware involved we applied our analysis to the measurements captured in a strong multipath scenario. Four different tests have been carried out employing the two receivers and coupled with two different antennas. Results achieved shows that the employment of the more performing antenna leads to better positioning results. The DRMS (Distance Root Mean Square) of horizontal position errors decreases of about the 54% and the 40% for the SDR and the u-blox, respectively. Nonetheless, the Nuand bladeRF shows poor positioning results with respect to those obtained with u-blox. The results achieved shows that Nuand is not yet suitable for surveying purposes. The reason resides in the poor quality of the reference clock of the on-board oscillator that doesn’t assure an appropriate stability.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
