https://scholars.lib.ntu.edu.tw/handle/123456789/155206
標題: | Modulation-based time-variant filter design using Wigner distribution | 作者: | SOO-CHANG PEI Yeh, Min-Hung |
關鍵字: | Time-variant filter; Wigner distribution | 公開日期: | 1994 | 期: | 40 44595 |
起(迄)頁: | 335-340 | 來源出版物: | Signal Processing | 摘要: | The modulation-based time-variant filters are very useful for nonstationary signal processing. They can be constructed by three stages: pre-modulation, time-invariant low-pass filtering and post-modulation. Wigner distribution is a popular tool for showing the time-frequency distribution of nonstationary signals. The combination of these two techniques is presented in this paper. We introduce Wigner distribution as a tool to estimate the modulation function for modulation-based filter. The Wigner distributions of modulation-based filters are discussed and the Wigner distributions of output signals of modulation-based filters are also shown. © 1994. |
URI: | http://ntur.lib.ntu.edu.tw//handle/246246/142428 https://www.scopus.com/inward/record.uri?eid=2-s2.0-0028547924&doi=10.1016%2f0165-1684%2894%2990080-9&partnerID=40&md5=1216bace46c25e0eaf0e96a9dfbc9bee |
ISSN: | 01651684 | DOI: | 10.1016/0165-1684(94)90080-9 | SDG/關鍵字: | Estimation; Function evaluation; Modulation; Signal processing; Time varying systems; Modulation based time variant filters; Nonstationary signals; Stationary signal processing; Wigner distribution; Low pass filters |
顯示於: | 電機工程學系 |
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