A modified second-order synchroextracting transform

Yaohui Wang; Yibin Rui; Meng Xu; Renhong Xie; Peng Li

doi:10.1117/12.3022795

28 March 2024 A modified second-order synchroextracting transform

Yaohui Wang, Yibin Rui, Meng Xu, Renhong Xie, Peng Li

Proceedings Volume 13091, Fifteenth International Conference on Signal Processing Systems (ICSPS 2023); 130910A (2024) https://doi.org/10.1117/12.3022795
Event: Fifteenth International Conference on Signal Processing Systems (ICSPS 2023), 2023, Xi’an, China

Abstract

The synchroextracting transform is a time-frequency post-processing method that allows signal reconstruction to obtain a more focused time-frequency representation. This paper proposes a modified second-order synchroextracting transform (MSSET) time-frequency analysis method which can handle multi-component signals and strong frequency-modulation signals more effectively. Different from the conventional time-frequency analysis methods, this method pre-detects the target area through joint image processing, and then designs a new local optimal window width (LOWW) selection scheme to achieve the optimal effect in the two dimensions of time scale and frequency scale. Finally, the superiority of the method in instantaneous frequency (IF) estimation and the energy concentration of the time-frequency representation (TFR) is verified by simulation experiments.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Yaohui Wang, Yibin Rui, Meng Xu, Renhong Xie, and Peng Li "A modified second-order synchroextracting transform", Proc. SPIE 13091, Fifteenth International Conference on Signal Processing Systems (ICSPS 2023), 130910A (28 March 2024); https://doi.org/10.1117/12.3022795

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KEYWORDS

Windows

Time-frequency analysis

Target detection

Edge detection

Sensors

Error analysis

Fourier transforms

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