Randomization Inference of Periodicity in Unequally Spaced Time Series with Application to Exoplanet Detection
不等间隔时间序列周期性的随机化推断及系外行星探测应用
The estimation of periodicity is a fundamental task in many scientific areas of study. Existing methods rely on theoretical assumptions that the observation times have equal or i.i.d. spacings, and that common estimators, such as the periodogram peak, are consistent and asymptotically normal. In practice, however, these assumptions are unrealistic as observation times usually exhibit deterministic patterns -- e.g., the nightly observation cycle in astronomy -- that imprint…