Ewan D. Barr edited minres.tex  over 8 years ago

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\section{Maximum Temporal Resolutions for SKA1\_Mid and SKA1\_Low} SKA1}  Figure \ref{fig:pulse_spectra} displays fluctuation power spectra derived from the long-term average profiles of two Parkes Pulsar Timing Array (PPTA) pulsars observed at 20 and 50 cm \cite{Dai_2015}. In these plots, the fluctuation power of each pulsar drops exponentially as a function of spin harmonic, eventually hitting a white noise floor. PSR~J0437$-$4715 and PSR~J2241$-$5236 are the worst case examples in which fluctuation power approaches the Nyquist limit where spin harmonics will be aliased. These plots indicate that 1024 phase bins is sufficient to resolve all of the structure in the mean pulse profiles of the currently known MSPs used for high-precision timing.