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Table 1
Symbols.
| Data | ||
|---|---|---|
| Symbol | Definition | |
| t | Epochs of measurements, the N data points are taken at times  |
|
| y | Colummn vector of the data,  |
|
| Model parameters | ||
| Parameter | Definition | |
| V | Assumed covariance matrix of the noise. | |
 |
Model of the null hypothesis, column vector with N components,  where  is an N × p matrix and  are free parameters. |
|
 |
Signal models. As defined in Eq. (2),  . The parameters θH, A, B are fitted onto the data for a grid of parameters ω, τ, t0. |
|
| μ | Function of time t and parameters ω, τ, t0, A, B defined in Eq. (3) as μ(t, ω, τ, t0, A, B) = w(τ, t0)(A cos ωt+B sin ωt). | |
| w | Apodisation window (for instance  ) |
|
| τ | Timescale of the apodisation window | |
| t0 | Centre of the apodisation window | |
| Grid parameters | ||
| Parameter | Definition | Default value |
| Nω | Oversampling in frequency | 8 |
| Nt | Oversampling in time | 5 |
| α | Downscaling of the timescale | 1∕3 |
| Nτ | Number of timescales | 5 |
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