Adaptive RID kernels which minimize time-frequency uncertainty

William J. Williams*, Tzu-Hsien Sang

*Corresponding author for this work

研究成果: Paper

42 引文 斯高帕斯(Scopus)

摘要

The Reduced Interference Distribution (RID) satisfies many of the desirable properties of time-frequency distributions (TFDs), including reduced interference. Using simple rules, it is possible to define kernels which guarantee the RID properties. A primitive h(t) is the starting point for kernel design. Starting with this primitive h(t), one may evolve a RID which enjoys all of the desirable properties. In addition, RIDs designed by this means also exhibit scale invariance in addition to the time-shift invariance and frequency-shift invariance exhibited by members of Cohen's class relevant to these properties. Such RIDs also exhibit a property which we call Information Invariance. Information invariance is defined under Renyi's generalized information. Renyi information has been found to be a useful quantifier of resolution in TFDs wherein minimum values of Renyi information are related to maximum resolution of the signal components. In this paper, we show that h(t) may be adapted to minimize Renyi information and thus achieve very good time-frequency resolution.

原文English
頁面96-99
頁數4
出版狀態Published - 1 十二月 1994
事件Proceedings of the IEEE-SP International Symposium on Time-Frequency and Time-Scale Analysis - Philadelphia, PA, USA
持續時間: 25 十月 199428 十月 1994

Conference

ConferenceProceedings of the IEEE-SP International Symposium on Time-Frequency and Time-Scale Analysis
城市Philadelphia, PA, USA
期間25/10/9428/10/94

指紋 深入研究「Adaptive RID kernels which minimize time-frequency uncertainty」主題。共同形成了獨特的指紋。

引用此