Lopes, C. G.Satorius, E.Estabrook, P.Sayed, Ali H.2017-12-192017-12-192017-12-19200910.1109/SSP.2009.5278640https://infoscience.epfl.ch/handle/20.500.14299/143228During the entry, descent and landing phase (EDL) of the missions to Mars, the spacecraft's high dynamics imprints severe Doppler swings on the signals transmitted via the direct-to-Earth (DTE) channel. In order to recover the data that record the mission status from the received signal, a reliable estimate of the Doppler profile is required. We extend previous work by developing order-adaptive schemes that enforce frequency continuity and improve tracking performance and, as a result, the overall frequency mean-square error as well.Order-adaptive frequency trackers for direct-to-Earth Mars communicationstext::conference output::conference proceedings::conference paper