標題: A Time-Frequency HRV Processor Using Windowed Lomb Periodogram
作者: Tseng, Shao-Yen
Fang, Wai-Chi
電子工程學系及電子研究所
Department of Electronics Engineering and Institute of Electronics
關鍵字: Biomedical system;portable;healthcare;remote monitoring;ECG;HRV;TFD;Lomb
公開日期: 2010
摘要: In this paper, a system for time-frequency analysis of heart rate variability (HRV) using windowed Lomb periodogram is proposed. The system is designed with considerations in SOC implementation for portable applications. Time-frequency analysis of HRV is achieved through a de-normalized Lomb periodogram with a sliding window configuration. The Lomb time-frequency distribution (TFD) is suited for power spectral density (PSD) analysis of unevenly spaced data and has been applied to the analysis of heart rate variability. The system has been implemented in hardware as an HRV processor and verified on FPGA. Artificial heart rate was used to evaluate the system as well as data from the MIT-BIH arrhythmia database and real EKG data. Simulations show that the proposed Lomb TFD is able to achieve better frequency resolution than short-time Fourier transform of the same hardware size.
URI: http://hdl.handle.net/11536/20948
ISBN: 978-3-642-17621-0
ISSN: 1865-0929
期刊: DATABASE THEORY AND APPLICATION, BIO-SCIENCE AND BIO-TECHNOLOGY
Volume: 118
起始頁: 273
結束頁: 282
Appears in Collections:Conferences Paper