![]() ![]() Our TDIR analysis uses Bayesian methods designed to ultimately be included in the LISA data model as part of a “Global Fit” analysis pipeline. The work reported here extends upon previous studies using data-driven methods for inferring the delays during the postprocessing of raw phase meter data, also known as TDI ranging (TDIR). ![]() Knowledge of the delay durations is crucial for TDI effectiveness. Time-delay interferometry (TDI) suppresses LFN to an acceptable level by linearly combining measurements from individual spacecraft delayed by durations that correspond to their relative separations. Laser frequency noise (LFN) is the dominant source of noise expected in the Laser Interferometer Space Antenna (LISA) mission, at approximately 7 orders of magnitude greater than the typical signal expected from gravitational waves (GWs).
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