UTILSLIB::Dpss Class Reference

Discrete Prolate Spheroidal Sequences (Slepian tapers). More...

#include <dpss.h>

Static Public Member Functions
static DpssResult	compute (int N, double halfBandwidth, int nTapers=-1)

Detailed Description

Discrete Prolate Spheroidal Sequences (Slepian tapers).

Computes DPSS tapers via the tridiagonal eigenvalue formulation. These tapers are used by the multitaper spectral estimator to achieve optimal spectral concentration within a given half-bandwidth.

// 256-sample window, half-bandwidth 4, default number of tapers (7)
DpssResult r = Dpss::compute(256, 4.0);
// r.matTapers   → 7 × 256
// r.vecEigenvalues → 7 concentration ratios ≈ 1.0

Definition at line 82 of file dpss.h.

Member Function Documentation

compute()

DpssResult Dpss::compute ( int N, double halfBandwidth, int nTapers = -1 )

static

Compute DPSS tapers for a given window length and half-bandwidth.

Parameters

[in]	N	Window length in samples.
[in]	halfBandwidth	Half-bandwidth parameter (NW); typical values: 2, 3, 4.
[in]	nTapers	Number of tapers to return; -1 → floor(2*halfBandwidth - 1).

Returns

DpssResult with matTapers (nTapers × N) and vecEigenvalues.

Definition at line 69 of file dpss.cpp.

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The documentation for this class was generated from the following files:

• src/libraries/dsp/dpss.h
• src/libraries/dsp/dpss.cpp