A comparative analysis of the performance of GNSS permanent receivers at the Centre for Geodesy and Geodynamics , Nigeria (original) (raw)

This study compares the performance of two continuously operating Global Navigation Satellite System (GNSS) receivers at the Toro observatory in Nigeria. The observatory is a proposed site for part of the global geodetic core network for collocation of GNSS and other space geodetic techniques. The pair of GNSS receivers (Ashtech UZ-12 and Trimble NetR8) are connected via a GNSS splitter to a single antenna (Trimble GNSS Choke Ring TRM59800.00). Observation files, precise orbit and clock files, and satellite differential code bias files with respect to the two receivers were collected for a period of 30 days. The WaSoft software (WaPPP module) was employed to estimate the receivers’ position, zenith tropospheric delay (ZTD) and tropospheric gradients. Also, the Gopi software was used to estimate the receivers’ bias and total electron content (TEC). The resulting parameters from the estimation software were subjected to hypothetical testing using the Student t-test based on the Bland ...

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