https://scholars.lib.ntu.edu.tw/handle/123456789/380412
Title: | New ping-pong scheduling for low-latency EMD engine design in Hilbert-Huang transform | Authors: | AN-YEU(ANDY) WU Shen, W.-C. Jen, H.-I. AN-YEU(ANDY) WU |
Keywords: | Empirical mode decomposition (EMD); Hilbert-Huang transform (HHT); ping-pong; sliding ensemble EMD (EEMD); VLSI | Issue Date: | 2013 | Journal Volume: | 60 | Journal Issue: | 8 | Start page/Pages: | 532-536 | Source: | IEEE Transactions on Circuits and Systems II: Express Briefs | Abstract: | Hilbert-Huang transform (HHT) is a powerful tool to analyze biomedical signals such as electroencephalography and electrocardiography signals. Empirical mode decomposition (EMD) is the kernel operation in HHT. Because an EMD algorithm usually needs large memory with long latency in computation, EMD is generally implemented by offline computations. In this brief, we propose a low-cost EMD engine with novel ping-pong scheduling. The resulting chip implementation can reduce half latency of the conventional EMD. Compared with the data-reuse scheme, the latency is reduced to only 0.003%, and the energy consumption can be reduced to 1%. The proposed EMD engine design makes the sliding ensemble EMD feasible for real-time HHT applications. © 2004-2012 IEEE. |
URI: | http://www.scopus.com/inward/record.url?eid=2-s2.0-84882817481&partnerID=MN8TOARS http://scholars.lib.ntu.edu.tw/handle/123456789/380412 |
DOI: | 10.1109/TCSII.2013.2268381 | SDG/Keyword: | Empirical Mode Decomposition; Hilbert Huang transforms; Ping-pongs; sliding ensemble EMD (EEMD); VLSI; Bioelectric phenomena; Electrophysiology; Energy utilization; Machine design; Scheduling; Signal processing |
Appears in Collections: | 電機工程學系 |
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