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- W4324118699 abstract "With the development of radar technology, frequency modulated continuous wave (FMCW) radar has been used for non-contact vital signs detection. In order to suppress the environmental noise and interference of breathing harmonics on heartbeat signal, this paper proposes a new vital sign detection method based on scale-space representation (SSR) and empirical wavelet transform (EWT) for the FMCW radar. First, a low-pass filter is set for the high-frequency noise elimination outside the frequency range of vital sign signals. Second, SSR is used to adaptively segment the spectrum of signals to obtain the initial frequency boundaries, and the kurtosis of the spectrum is applied to segment the spectrum again and obtain the final frequency boundaries to further eliminate noise. Third, the empirical wavelet filter bank is constructed by using the determined boundaries and EWT is used to decompose the signals to several components. Finally, according to the frequency ranges of components and the correlation between the components and vital sign signals, the components are selected to reconstruct the breathing and heartbeat signals. The experimental results show that the proposed method achieves a better detection performance than the classical EWT and empirical mode decomposition (EMD)." @default.
- W4324118699 created "2023-03-15" @default.
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- W4324118699 date "2022-11-25" @default.
- W4324118699 modified "2023-10-16" @default.
- W4324118699 title "Vital Signs Detection Based on Scale-Space Representation and Empirical Wavelet Transform for FMCW Radar" @default.
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- W4324118699 doi "https://doi.org/10.1109/cac57257.2022.10055062" @default.
- W4324118699 hasPublicationYear "2022" @default.
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