Abstract
We provide a statistical analysis of a tool in nonlinear-type time-frequency analysis, the synchrosqueezing transform (SST), for both the null and nonnull cases. The intricate nonlinear interaction of different quantities in SST is quantified by carefully analyzing relevant multivariate complex Gaussian random variables. Specifically, we provide the quotient distribution of dependent and improper complex Gaussian random variables. Then a central limit theorem result for SST is established. As an example, we provide a block bootstrap scheme based on the established SST theory to test if a given time series contains oscillatory components.
Original language | English (US) |
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Pages (from-to) | 2694-2712 |
Number of pages | 19 |
Journal | Annals of Statistics |
Volume | 50 |
Issue number | 5 |
DOIs | |
State | Published - Oct 2022 |
Keywords
- CR calculation
- Synchrosqueezing transform
- complex Gaussian random vector
- kernel regression
- time series analysis
ASJC Scopus subject areas
- Statistics and Probability
- Statistics, Probability and Uncertainty