Key result
A proposed frequency domain convolution method for Polynomial Wigner-Ville Distribution eliminates cross-term interference while maintaining high time-frequency concentration.
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Reduces cross-terms in PWVD via STFT convolution; leaves open real-world validation beyond simulations.
多项式Wigner-Ville分布(PWVD)是分析多项式相位信号(PPS)时频特性的一种有力工具。该文根据PWVD的结构特点，提出一种通过频域卷积来实现PWVD的方法，将其分解成一系列Wigner-Ville分布(WVD)
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Wang et al. (2011) studied this question. A proposed frequency domain convolution method for Polynomial Wigner-Ville Distribution eliminates cross-term interference while maintaining high time-frequency concentration.
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