摘要
时频分析旨在构造一种时间和频率的密度函数 ,以揭示信号中所包含的频率分量及其演化特性 .本文以抑制Wigner Ville分布中的交叉项干扰为主线 ,综述了时频分析的历史沿革、面临的挑战 ,及在一些领域中的应用 .
The aim of time frequency analysis is to find a density in time and frequency that indicates which frequencies are present in the signal and how they evolve with time.Based on the suppression of cross term interference in Wigner Ville distribution,the development history and current and future challenges of time frequency analysis are reviewed in some detail,together with some successful applications appearing in the literature.
出处
《电子学报》
EI
CAS
CSCD
北大核心
2000年第9期78-84,共7页
Acta Electronica Sinica
基金
国家自然科学基金!(No 697750 0 9)
国防科技重点实验室基金!(No 97JS34 7 1 JW0 1 0 5)
