Comparison of the BCKA filter pre- and postfiltering of PSR J1856-3754. The left panel displays the 40 folded sets of simulated observations prior to filtering, while the right panel illustrates the outcomes of the corresponding simulated observations subsequent to filtering. To demonstrate and quantify statistical significance, we randomly chose transient and persistent events from two pulsars without replacement, aggregating 100 observations into a single folded dataset each time.