Algorithm 1 Pseudocode for raw data processing

1:procedure RawDataProcessing(radar) 2:    $\mathbf{raw}\_\mathbf{data}\leftarrow \mathrm{Get}\_\mathrm{Raw}\_\mathrm{data}\left(\mathrm{radar}\right)$ 3:    $\mathbf{previous}\_\mathbf{circles}\leftarrow \left[\right]$    4:loop: 5:    $\mathrm{doa}\leftarrow \mathrm{ESBM}\left(\mathbf{raw}\_\mathbf{data}\right)$ 6:    $\mathbf{pulse}\_\mathbf{waves}\leftarrow \mathrm{DisplacementExtraction}(\mathbf{raw}\_\mathbf{data}, \mathbf{previous}\_\mathbf{circle})$ 7:    $\mathbf{features}\leftarrow \mathrm{FeatureExtraction}\left(\mathbf{pulse}\_\mathbf{waves}\right)$ 8:    $\mathbf{BP}\_\mathbf{values}\leftarrow \mathrm{MapFeaturesToBP}\left(\mathbf{features}\right)$ 9:    goto loop.