Energy-frequency-time heart sound analysis
作者： William H. Corcoran , David W. Suobank , Earl C. Harrison
DOI:
关键词: Electrical engineering 、 Operability 、 Mathematics 、 Acoustics 、 Sound analysis 、 Energy (signal processing) 、 Heart valve 、 Data analysis 、 Radio spectrum 、 Power (physics)
摘要: A method for determining the operability status of heart valves IN VIVO. Accoustical data emanating from a valve to be analyzed is gathered. The are divided into time slices, and power, energy, frequency relations each slice calculated. energy ratio known peak frequencies compared between analysis as gathered levels properly operating valve. bands also Valve malfunctioning indicated by presence high change in power and/or at selected key bands.
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