First stage of LISA data processing: Clock synchronization and arm-length determination via a hybrid-extended Kalman filter

摘要

In this paper, we describe a hybrid-extended Kalman filter algorithm tosynchronize the clocks and to precisely determine the inter-spacecraftdistances for space-based gravitational wave detectors, such as (e)LISA.According to the simulation, the algorithm has significantly improved theranging accuracy and synchronized the clocks, making the phase-meter rawmeasurements qualified for time- delay interferometry algorithms.