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What is Multimodal Pressure Flow Analysis using HHT?

How is the Hilbert-Huang Transform (HHT) used to analyze Multimodal Pressure Flow in systems?

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By Aarthi S Answered 3 months ago

Multimodal Pressure Flow Analysis, employing NASA's Hilbert-Huang Transform (HHT), is a method for analyzing nonlinear, nonstationary signals common in physiological systems (e.g., blood pressure, respiratory flow). HHT decomposes signals into intrinsic mode functions to reveal time-frequency-energy characteristics. The "computational challenge" lies in processing complex, multi-channel data to quantify dynamic interactions and couplings between systems (like heart-lung interactions), providing insights into system coherence and regulatory mechanisms that traditional Fourier-based methods cannot capture.

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