CASIA OpenIR  > 09年以前成果
Nonnegative time-frequency distributions for parametric time-frequency representations using semi-affine transformation group
Zou, HX; Wang, DJ; Zhang, XD; Li, YD
2005-09-01
发表期刊SIGNAL PROCESSING
卷号85期号:9页码:1813-1826
文章类型Article
摘要This paper proposes a method for calculating a nonnegative time-frequency distribution (TFD) whose concentration is identical to that of Wigner-Ville distribution ( WD) when instantaneous frequencies (IFs) of the best-matched elementary functions of the signal under analysis are pre-estimated. This method is based on a special class of transformation group, referred to as semi-affine transformation (SAT) group. The essence of this method is to create a joint distribution by translating the values of WVDs of Morlet wavelet to the positions around IFs of the best-matched elementary functions. Theoretical predictions and numerical results indicate that the proposed strategy can result in the most visually appealing TFDs for highly nonstationary signals. (C) 2005 Elsevier B.V. All rights reserved.
关键词Nonnegative Time-frequency Distribution Wigner-ville Distribution Fm(m)Let Transform Dopplerlet Transform Semi-affine Transformation (Sat) Group Instantaneous Frequency Parametric Atomic Decomposition Matching Pursuit
WOS标题词Science & Technology ; Technology
关键词[WOS]WIGNER-VILLE DISTRIBUTIONS ; HIGHER-ORDER SPECTRA ; FM(M)LET TRANSFORM ; NONSTATIONARY SIGNALS ; ATOMIC DECOMPOSITION ; CHIRPLET TRANSFORM ; PURSUIT
收录类别SCI
语种英语
WOS研究方向Engineering
WOS类目Engineering, Electrical & Electronic
WOS记录号WOS:000230803200010
引用统计
被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ia.ac.cn/handle/173211/9175
专题09年以前成果
作者单位1.Tsing Hua Univ, Dept Automat, Beijing 100084, Peoples R China
2.Tsing Hua Univ, State Key Lab Intelligent Technol & Syst, Beijing 100084, Peoples R China
3.Chinese Acad Sci, Inst Automat, Natl Lab Pattern Recognit, Beijing 100080, Peoples R China
4.Tsing Hua Univ, Dept Math Sci, Beijing 100084, Peoples R China
推荐引用方式
GB/T 7714
Zou, HX,Wang, DJ,Zhang, XD,et al. Nonnegative time-frequency distributions for parametric time-frequency representations using semi-affine transformation group[J]. SIGNAL PROCESSING,2005,85(9):1813-1826.
APA Zou, HX,Wang, DJ,Zhang, XD,&Li, YD.(2005).Nonnegative time-frequency distributions for parametric time-frequency representations using semi-affine transformation group.SIGNAL PROCESSING,85(9),1813-1826.
MLA Zou, HX,et al."Nonnegative time-frequency distributions for parametric time-frequency representations using semi-affine transformation group".SIGNAL PROCESSING 85.9(2005):1813-1826.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Zou, HX]的文章
[Wang, DJ]的文章
[Zhang, XD]的文章
百度学术
百度学术中相似的文章
[Zou, HX]的文章
[Wang, DJ]的文章
[Zhang, XD]的文章
必应学术
必应学术中相似的文章
[Zou, HX]的文章
[Wang, DJ]的文章
[Zhang, XD]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

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。