  Determination of detection sensitivity in a number of previous pulsar search
programmes was done via the straightfoward use of the radiometer equation. In
the same surveys, the Fourier domain method was used to search for pulsars. As
detection sensitivity is partially a function of the searching method, the
straightfoward use of the radiometer equation for detection sensitivity
determination is not consistent with the Fourier searching method. In this
proceeding, I clarify the problem and note the way for sensitivity
determination which is consistent with the Fourier searching method. More
details can be found in Yu (2018).
