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Table 3 Estimated parameters of the bat echolocation signal

From: Non-stationary component extraction in noisy multicomponent signal using polynomial chirping Fourier transform

Component

Component 1

Component 2

Component 3

Component 4

\( \tilde{\alpha }_{1} \)

−629.60

−614.35

−498.14

1.3144e+3

\( \tilde{\alpha }_{2} \)

6.9769e+4

1.3417e+5

6.7696e+3

−3.2871e+5