WebCWD (>> Co-occurring Abbreviation) ... Choi-Williams distribution: Abbreviation Variation Long Form Variation Pair(Abbreviation/Long Form) Variation No. Year Title Co-occurring … WebCNN-KCRDP的识别过程包括四个功能:CWD功能,经过预训练的AlexNet的池化层输出功能,经过微调的AlexNet的池化层输出功能以及CNN-KCRDP的低维判别功能。在SNR=8dB的条件下选择12个雷达信号的4800个样本。然后,通过t分布随机邻居嵌入(TSNE)算法减少提取的特征向量。
基于信息熵的时频参数优化及内燃机轴承磨损监测 - 豆丁网
WebMar 29, 2024 · 3.2 CWD分布 (Choi-Williamsdistribution) 连续信号f (t)的时频分布的一般式定义为:. 式中称为核函数。根据Cohen关于时频分布的一般理论,选择不同的核函数就可以得到不同的分布。当核函数取时,通过改变 … WebThe Choi-Williams distribution (CWD) uses an exponential kernel in the generalized class of bilinear time-frequency distributions to achieve a reduction in the cross-term components … flights from pensacola fl to cancun mexico
Choi–Williams Distribution - Castiglioni - Wiley Online Library
WebJul 15, 2005 · Choi–Williams Distribution. The Choi–Williams distribution is a transform that represents the spectral content of nonstationary signal as a two-dimensional time–frequency map. It largely avoids one of the main problems of the Wigner–Ville distribution: the presence of interference terms in regions where one would expect zero … Web崔-威廉斯分布(英语:Choi-Williams distribution function)是科恩克莱斯分布系列函数中的一种。崔-威廉斯分布于公元1989年由 Hyung-Ill Choi 和 William J. Williams 提出。本 … WebChoi-Williams distribution in linear canonical domains and its application in noisy LFM signals detection. Zhang, Zhi-Chao. Due to the requirement of signal representation's … cherrawia aldo