摘要：Time-frequency analysis is widely used in the processing and interpretation of seismic data. The fractional-order Fourier transform can process nonstationary data by introducing a rotation angle into the time-frequency plane. To take advantage of the fractional-order Fourier transform and the W-transform, we introduce the fractional-order W-transform (FrWT) by introducing rotation and scaling parameters in the hope of producing time-frequency spectra with high-energy concentration and resolution. The rotation angle of the time-frequency plane introduces more characteristics into the time-fractional-frequency domain, making the algorithm more applicable to geophysical problems. We also propose a computational strategy to speed up the calculation. Numerical investigation of synthetic and real data shows that the proposed algorithm can achieve a time-frequency spectrum with higher resolution and energy concentration but at the cost of negligible additional computational effort. ? 2004-2012 IEEE.

ISSN号：1545-598X

卷、期、页：卷21：1-5

发表日期：2023-12-07

期刊分区（SCI为中科院分区）：二区

收录情况：SCI（科学引文索引印刷版）,地学领域高质量科技期刊分级目录（国外T1）,EI（工程索引）,SCIE（科学引文索引网络版）

发表期刊名称：IEEE Geoscience and Remote Sensing Letters

参与作者：王仰华

第一作者：赵振聪,饶莹

论文类型：期刊论文

论文概要：赵振聪,饶莹,王仰华，The Fractional-Order W-Transform，IEEE Geoscience and Remote Sensing Letters，2023，卷21：1-5

论文题目：The Fractional-Order W-Transform