Time-Frequency Localization Optimized Biorthogonal Wavelets

被引：0
|
作者：
Sharma, Manish [1 ]
Kolte, Ritesh [1 ]
Patwardhan, Pushkar [1 ]
Gadre, Vikram [1 ]
机构：
[1] Indian Inst Technol, Dept Elect Engn, Bombay 400076, Maharashtra, India
来源：
2010 INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING AND COMMUNICATIONS (SPCOM) | 2010年
关键词：
biorthogonal filter banks; linear phase; wavelets; time-frequency localization; FILTER BANKS;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The time-frequency product of any function in L-2 (R) is bounded by the uncertainty principle. This paper presents a method to design linear phase biorthogonal wavelets with the time-frequency localization as the optimality criterion, improving on the previous designs on the same theme. The design philosophy is to optimize the time-frequency product of the wavelet, after fixing the number of vanishing moments of the analysis and synthesis lowpass filters of the corresponding filter bank. The regularity of the discrete filters has also been evaluated.
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页数：5
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