Resultado de búsqueda
The antenna reference point (ARP) is the physical point on the antenna to which antenna calibration values are referenced. ARP is preferably an easily accessible point on the lowest non-removable horizontal surface of the antenna.
NGS offers complete, downloadable files of absolute antenna calibrations in both ANTEX and ANTINFO formats. These can be found under the "Access Calibrations for All Antennas" menu above. A new reference system, IGS20, was released on 2 October 2022, replacing the previous IGS14 reference system.
Each receiver antenna type in use within the IGS network should be contained in three different files (satellite antennas are only contained in the first two of them): rcvr_ant.tab: naming convention. *.atx: phase center corrections. antenna.gra: reference points and dimensions.
7 de may. de 2020 · Antenna reference point is the bottom of the RS2, phase center offsets for L1 and L2 are 134mm.
ARP: Antenna Reference Point, is the physical point on the antenna to which antenna calibration values are referenced. ARP is preferably an easily accessible point on the lowest non-removable horizontal surface of the antenna. Typically, the ARP coincides with the axis of attachment of the antenna to a monument or surveying instrument.
These antenna phase centre variations (APCV) are deviations from the mean APC and can cause additional errors of up to 20 mm in the measurement to a single GNSS satellite. ... View in full-text.
As this location is frequency dependent, a point tied to the base of the antenna is used as a more suitable reference. This point is named Antenna Reference Point (ARP). The manufacturers provide technical information on the APC position relative to the ARP.
