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Post-processed time-delay interferometry for LISA
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High-precision interpolation of LISA phase measurements allows signal reconstruction and formulation of Time-Delay Interferometry (TDI) combinations to be conducted in post-processing. The reconstruction is based on phase measurements made at approximately 10 Hz, at regular intervals independent of the TDI delay times. Interpolation introduces an error less than 1e-8 with continuous data segments as short as two seconds in duration. Potential simplifications in the design and operation of LISA are presented.
Forward citations
Cited by 3 Pith papers
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Mitigation of the Flexing-Filtering Effect in Time-Delay Interferometry
A modified TDI delay operator that folds the anti-aliasing filter response into the delay itself suppresses flexing-filtering noise in LISA simulations, with residuals dropping below the 0.1 pm reference.
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TDI on the fly
A sparse-sampling algorithm computes TDI response for any gravitational waveform on a coarse grid, reducing cost by roughly 10^4 while matching full-cadence results.
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Correlation and Data-Analysis Distinctiveness of Time-Delay Interferometry Configurations
Short-span TDI configurations with minimal null frequencies, especially PD4L, improve frequency-domain gravitational-wave parameter estimation at high frequencies, while time-domain analysis makes all configurations e...
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