Applying the Z2n statistics to any pulsed profile
Experiments with the statistics of pulsed profiles
In this paper, we present a version of the Z2n statistic and H-test for pulse profiles with Gaussian uncertainties, appropriate for radio or even optical pulse profiles. We show how these statistical indicators provide better sensitivity to low-significance pulsar candidates with respect to the usual χ2 method and a straightforward way to discriminate between pulse profile shapes. Moreover, they provide an additional tool for radio frequency interference rejection.
The paper can be read here