UTILSLIB::MultitaperTfr Class Reference

Sliding-window multitaper time-frequency representation. More...

#include <multitaper_tfr.h>

Static Public Member Functions
static MultitaperTfrResult	compute (const Eigen::MatrixXd &matData, double sfreq, int windowSize=256, int stepSize=-1, double halfBandwidth=4.0, int nTapers=-1)

Detailed Description

Sliding-window multitaper time-frequency representation.

Slides a fixed-length analysis window across the data and computes a multitaper PSD at each position, yielding a time-frequency power map per channel.

// 600 Hz data, 256-sample windows, 128-sample step, half-bandwidth 4
MultitaperTfrResult r = MultitaperTfr::compute(matData, 600.0);
// r.tfrData[ch] → n_freqs × n_time_steps

Definition at line 87 of file multitaper_tfr.h.

Member Function Documentation

compute()

MultitaperTfrResult MultitaperTfr::compute ( const Eigen::MatrixXd & matData, double sfreq, int windowSize = 256, int stepSize = -1, double halfBandwidth = 4.0, int nTapers = -1 )

static

Compute sliding-window multitaper TFR for every channel of a data matrix.

Parameters

[in]	matData	Data matrix (n_channels × n_times).
[in]	sfreq	Sampling frequency in Hz.
[in]	windowSize	Analysis window length in samples (default 256).
[in]	stepSize	Step size in samples; -1 → windowSize / 2.
[in]	halfBandwidth	Half-bandwidth parameter (NW); default 4.0.
[in]	nTapers	Number of DPSS tapers; -1 → floor(2*halfBandwidth - 1).

Returns

MultitaperTfrResult with tfrData, vecFreqs, vecTimes.

Definition at line 68 of file multitaper_tfr.cpp.

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

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