摘要
Gabor展开与变换是非平稳信号重要的时频分析工具之一,由其变换系数得到的Gabor时频谱揭示了信号中所包含的频率分量及其演化特性.综述了Gabor展开与变换的基本理论、研究进展与现状,简介了其在一些领域中的应用,并展望了未来的进一步研究.
Gabor expansion and transform are one of the important tools for joint timefrequency analysis of nonstationary signals. The Gabor time-frequency spectrum obtained from the Gabor transform coefficients can indicate which frequencies are present in the signal and how they evolve with time. In this paper, the basic theory, the development history and current researches on Gabor expansion and transform were reviewed in some detail, together with some successful applications appearing in the literature. Finally, some future research challenges of Gabor expansion and transform were shown.
出处
《安徽大学学报（自然科学版）》
CAS
北大核心
2017年第2期2-13,共12页
Journal of Anhui University(Natural Science Edition)
基金
国家自然科学基金资助项目(61372137)
关键词
Gabor展开与变换
时频分析
时频谱
窗函数
快速算法
Gabor expansion and transform
joint time-frequency analysis
time-frequency spectrum
window function
fast algorithm
