A non-negative approximate Wigner distribution with accurate low-order moments

被引：0
|
作者：
Georgopoulos, VC
Preis, D
机构：
来源：
DSP 97: 1997 13TH INTERNATIONAL CONFERENCE ON DIGITAL SIGNAL PROCESSING PROCEEDINGS, VOLS 1 AND 2: SPECIAL SESSIONS | 1997年
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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：
In this paper a procedure to compute a non-negative time-frequency distribution that yields the total energy of the analytic signal and satisfies the zero-and first-order moments of its Wigner distribution is developed. These moments are the instantaneous power (or envelope squared), the energy spectrum, the instantaneous frequency moment, and the group delay moment. The distribution is computed by using a neural network form, iterative algorithm and does not have interference terms.
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页码：769 / 772
页数：4
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