As of 10:34:00 AM UTC. Market Open. A ratio that indicates liquidity. Higher ratios suggest the asset is more actively traded and easier to buy/sell near its true value. Lower ratios may mean less ...

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Abstract: Time–frequency (TF) analysis (TFA) is a valuable tool for capturing nonstationary features in time-varying signals. However, for strongly amplitude-modulated and frequency-modulated (AM–FM) ...