The reassignment vectors of the matched reassigned spectrogram (MRS) have shown to be sensitive to noise, with resulting degraded precision in the time-frequency localization. In this paper we propose a multitaper reassignment (mtRS) method for estimation of time- and frequency locations of Gaussian envelope transients. We present novel expressions for the reassignment vectors with use of a non-matched window. These reassignment vectors are then averaged with the usual MRS reassignment vectors forming a multitaper reassignment with use of orthogonal windows. The mtRS is shown to give a higher precision in the time- and frequency estimates in low SNR compared to the usual MRS and also in comparison to other state-of-the-art methods.
|Title of host publication
|ICASSP 2020 - 2020 IEEE International Conference on Acoustics, Speech and Signal Processing
|IEEE - Institute of Electrical and Electronics Engineers Inc.
|Published - 2020
|IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) 2020 - Centre de Convencions Internacional de Barcelona (CCIB), Barcelona, Spain
Duration: 2020 May 4 → 2020 May 8
|IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) 2020
|2020/05/04 → 2020/05/08
Subject classification (UKÄ)
- Signal Processing