Testing the Validity of the Equivalence Principle via Noon-Midnight Doppler Compensation in the GPS System
Year: 2025
Type: article
Abstract: We propose an experiment based on GPS sattelite clock data to probe the validity of the Equivalence Principle. A particular focus is on the apparent absence of a classical first order Doppler effect due to the geocentric systems acceleration in the solar gravitational field. This missing effect is potentially to be compensated by a gravitational redshift arising from a uniform external field. This compensation parallels that of the Pound Rebka experiment sugesting that the observed null result may not reflect coordinate cancellation, but a physical effect. We argue that if the Doppler contribution should exist objectively in both GCRS and BCRS , then its absence in observation implies a real gravitational influence.
Authors: Rimsha, Laimontas, Rimsha, Viktoras
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7077142289
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