https://scholars.lib.ntu.edu.tw/handle/123456789/498885
標題: | New Time-Frequency Distribution | 作者: | SOO-CHANG PEI Tsai, E.-J. |
公開日期: | 1995 | 卷: | 14 | 期: | 4 | 起(迄)頁: | 539-553 | 來源出版物: | Circuits, Systems, and Signal Processing | 摘要: | Cross terms are an inherent consequence of the second order nature of Cohen's class TFDs (Time-Frequency Distributions) [5], [6]. They are manifest in a TFD of multicomponent signals as spurious artifacts arising from interactions between the various signal components, and they can often appear at times and/or frequencies inconsistent with the underlying physical nature of the signal, causing misinterpretation [2], [3], [4]. There are many time frequency distributions that avoid the cross term effect; the best are the Choi-Williams ED (Exponential Distribution) [1] and Levin's IPS (Instantaneous Power Spectrum) [9]. In this paper we combine the cross term reducing philosophy of the ED and IPS to obtain a new TFD that most effectively reduces the cross term effect. Surprisingly, the new TFD also satisfies most desired TFD properties. © 1995 Birkhäuser. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/498885 https://www.scopus.com/inward/record.uri?eid=2-s2.0-0029215408&doi=10.1007%2fBF01260336&partnerID=40&md5=e888a922ac1c76f4615d4932ccd2ad93 |
ISSN: | 0278081X | DOI: | 10.1007/BF01260336 | SDG/關鍵字: | Attenuation; Frequencies; Frequency domain analysis; Signal interference; Signal processing; Signal theory; Time domain analysis; Exponential distribution; Instantaneous power spectrum; Interference attenuation; Interference concentration; Time frequency distribution; Circuit theory |
顯示於: | 電機工程學系 |
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