A Noninvasive Blood Pressure (NIBP) device, method, and system may employ one or more sensors configured to sense physiological changes associated with cardiovascular function and provide signals corresponding to the sensed physiological changes； one or more signal detectors to detect an ECG signal, a PPG signal, and a PCG signal from the signals provided by the one or more sensors； a computational system configured to derive signal features related to the detected signal waveforms； process the signal features to determine measurements of noninvasive blood pressure using one or more independent prediction models； and output a result of the determination.
