cogpy.wave.multitaper_nd

Separable N-D multitaper spectral estimation.

Constructs N-dimensional tapers as outer products of 1-D DPSS (discrete prolate spheroidal sequences) and applies them to estimate variance-reduced k-ω spectra.

References

[1]

Hanssen, “Multidimensional multitaper spectral estimation”, Signal Processing, 1997. DOI: 10.1016/S0165-1684(97)00076-5

[2]

Thomson, “Spectrum estimation and harmonic analysis”, Proc. IEEE, 1982. DOI: 10.1109/PROC.1982.12433

Functions

dpss_nd(shape, bw)	Build separable N-D DPSS tapers.
multitaper_kw_spectrum(data, geometry, ...)	Variance-reduced k–ω spectrum via N-D multitaper.