Comparison between time-domain dedispersion (top row) and FDD (bottom row), with (a) and (c) representing the input dynamic spectrum, (b) showing the dynamic spectrum after applying the appropriate delays for each frequency, (d) showing the Fourier transform of the time series (amplitude and phase) along with the phasors applied in 𝒯_{ν → DM}, (e) showing the result after applying the phasors, and (f) showing the dynamic spectrum after the inverse Fourier transform, . The hashed regions in (b) and (f) represent data that should be discarded.