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首页> 外文期刊>Signal Processing: The Official Publication of the European Association for Signal Processing (EURASIP) >SMOOTHED PSEUDO-WIGNER DISTRIBUTION, CHOI-WILLIAMS DISTRIBUTION, AND CONE-KERNEL REPRESENTATION - AMBIGUITY-DOMAIN ANALYSIS AND EXPERIMENTAL COMPARISON
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SMOOTHED PSEUDO-WIGNER DISTRIBUTION, CHOI-WILLIAMS DISTRIBUTION, AND CONE-KERNEL REPRESENTATION - AMBIGUITY-DOMAIN ANALYSIS AND EXPERIMENTAL COMPARISON

机译：SMOOTHED PSEUDO-WIGNER DISTRIBUTION, CHOI-WILLIAMS DISTRIBUTION, AND CONE-KERNEL REPRESENTATION - AMBIGUITY-DOMAIN ANALYSIS AND EXPERIMENTAL COMPARISON

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摘要

The smoothed pseudo-Wigner distribution, the Choi-Williams distribution, and the cone-kernel representation are three time-frequency representations (TFRs) which feature an attenuation of cross (interference) terms as compared with the Wigner distribution. In this paper, we use an analysis of ambiguity-domain weighting functions for comparing the interference attenuation and time-frequency concentration properties of the three TFRs. These properties are then further investigated by studying the results obtained for a set of simple two-component signals, This analysis shows important effects and performance limitations whose understanding is essential for a practical application of the TFRs.

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