QQ客服 官方微博 反馈留言

	Chirplet based nonnegative time-frequency distribution for FM/sup m /let transform
	Zou Hongxing ; Wang Dianjun ; Dai Qionghai ; Li Yanda
	2010-05-06 ; 2010-05-06
关键词	Theoretical or Mathematical/ Gaussian distribution signal processing time-frequency analysis Wigner distribution/ chirplet transform nonnegative time-frequency distribution FM/sup m/let transform Wigner-ville distribution Gaussian chirplet instantaneous frequency time-varying spectral content nonstationary signal matching pursuit/ B6140 Signal processing and detection B0240Z Other topics in statistics C1260S Signal processing theory C1140Z Other topics in statistics
中文摘要	This paper proposes a method of devising a nonnegative time-frequency distribution (TFD) for displaying the decomposition results of FM/sup m/let transform. Underlying this method are the facts that the chirplet is a special case of FM/sup m/let and that the Wigner-ville distribution (WVD) of Gaussian chirplet is nonnegative. The true essence of the method is to migrate the values of WVDs of Gaussian chirplets to the positions of instantaneous frequencies (IFs) of the best matched FM/sup m/let atoms for different signal components. The relative merits and usefulness of the resulting TFD are twofold: first, it is nonnegative; second, its localization is identical to that of WVD. Therefore, the resulting TFD is more flexible and advantageous for delineating the time-varying spectral contents of a non-stationary signal.
语种	英语 ; 英语
出版者	Chinese Inst. Electron ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/8903]
专题	清华大学
推荐引用方式 GB/T 7714	Zou Hongxing,Wang Dianjun,Dai Qionghai,et al. Chirplet based nonnegative time-frequency distribution for FM/sup m /let transform[J],2010, 2010.
APA	Zou Hongxing,Wang Dianjun,Dai Qionghai,&Li Yanda.(2010).Chirplet based nonnegative time-frequency distribution for FM/sup m /let transform..
MLA	Zou Hongxing,et al."Chirplet based nonnegative time-frequency distribution for FM/sup m /let transform".(2010).

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。