Open Access

Table C.1

Kernels (kW) obtained for different window shapes (W), normalized such that kW(0) = 1.

W (t) kW (τ) kernel type rank
Sudden appearing and exp. decay 1t>0 exp(−t/ρ) exp(−|τ|/ρ) Matérn 1/2 1
Asymmetric exp. (dis)appearing 1t<0 exp(t/ρ) + 1t>0 exp(−t/ρ+) ρ+exp(|τ|/ρ+)ρexp(|τ|/ρ)ρ+ρ${{{{\rho _ + }\exp \left( { - |\tau |/{\rho _ + }} \right) - {\rho _ - }\exp \left( { - |\tau |/{\rho _ - }} \right)} \over {{\rho _ + } - {\rho _ - }}}}$ Sum of Matérn 1/2 2
Symmetric exp. (dis)appearing exp(−|t|/ρ) (1+|τ|ρ)exp(|τ|/ρ)${\left( {1 + {{|\tau |} \over \rho }} \right)\exp ( - |\tau |/\rho )}$ Matérn 3/2 3

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