A periodogram window for the highest-amplitude peak in the synthetic time series discussed in Sect. 3.1. We set LASR to sample the spectral power of this peak 25 times. The black and red points show the P_i (ω) before and after LASR minimized the peak’s significance. The unreduced oscillation shows a clear peak with aliasing on either side. The dashed line marks the true frequency of this oscillation. LASR successfully reduces this oscillation and yields correct measurements of its (w, A, δ) values (see Table 2).