Donovan Koch

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About

Donovan Koch is a leading figure in high-precision Global Navigation Satellite System (GNSS) geodesy, with a primary focus on the rigorous calibration of GNSS antennas. His most impactful work introduces an absolute field calibration method using a 6-axis industrial robot, a technique that directly addresses the directional-dependent phase center errors inherent in GNSS antennas. By mounting the antenna on a robot at one end of a short baseline, Koch’s approach enables precise, repeatable calibration in real-world conditions, moving beyond traditional relative methods. This seminal paper, "Absolute GNSS Antenna Phase Center Calibration with a Robot" (2018), has garnered 11 citations, establishing a foundation for improved accuracy in geodetic positioning and atmospheric sensing. Koch’s contributions are critical for applications requiring millimeter-level precision, such as tectonic monitoring and reference frame maintenance. His work is recognized for bridging robotics and geodesy, offering a practical solution to a long-standing challenge in GNSS science.