doppler: Sinusoid with Changing Amplitude and Frequency
Description
$$doppler(x) = \sqrt{x(1 - x)}
\sin\left(\frac{2.1\pi}{x+0.05}\right)$$format
A vector containing 512 observations.source
S+WAVELETS.References
Bruce, A., and H.-Y. Gao (1996)
Applied Wavelet Analysis with S-PLUS, Springer: New York.