### Abstract

Original language | English |
---|---|

Pages (from-to) | 378-381 |

Number of pages | 4 |

Journal | IEEE Signal Processing Letters |

Volume | 9 |

Issue number | 11 |

DOIs | |

Publication status | Published - 2002 |

### Fingerprint

### Cite this

*IEEE Signal Processing Letters*,

*9*(11), 378-381. https://doi.org/10.1109/LSP.2002.805118

}

*IEEE Signal Processing Letters*, vol. 9, no. 11, pp. 378-381. https://doi.org/10.1109/LSP.2002.805118

**On rotated time-frequency kernels.** / Bastiaans, M.J.; Alieva, T.; Stankovic, L.

Research output: Contribution to journal › Article › Academic › peer-review

TY - JOUR

T1 - On rotated time-frequency kernels

AU - Bastiaans, M.J.

AU - Alieva, T.

AU - Stankovic, L.

PY - 2002

Y1 - 2002

N2 - The principal axes of the time-frequency representation of a signal are defined as those mutually orthogonal directions in the time-frequency plane for which the width of the signal's fractional power spectrum is minimum or maximum. The time-frequency kernels used in the Cohen class of time-frequency representations are then rotated in the time-frequency plane, in order to align the kernels' preferred axes to the signal's principal axes. It is shown that the resulting time-frequency representations show a better reduction of cross-terms without too severely degrading the auto-terms than the corresponding, original time-frequency representations.

AB - The principal axes of the time-frequency representation of a signal are defined as those mutually orthogonal directions in the time-frequency plane for which the width of the signal's fractional power spectrum is minimum or maximum. The time-frequency kernels used in the Cohen class of time-frequency representations are then rotated in the time-frequency plane, in order to align the kernels' preferred axes to the signal's principal axes. It is shown that the resulting time-frequency representations show a better reduction of cross-terms without too severely degrading the auto-terms than the corresponding, original time-frequency representations.

U2 - 10.1109/LSP.2002.805118

DO - 10.1109/LSP.2002.805118

M3 - Article

VL - 9

SP - 378

EP - 381

JO - IEEE Signal Processing Letters

JF - IEEE Signal Processing Letters

SN - 1070-9908

IS - 11

ER -