⚡ 本页包含 AI 生成的分析内容，仅供参考
该论文提出了一款用于颈带式血压和心血管监测的基线追踪阻抗体积描记图IC，实现了145.2dB的动态范围。通过相位同步器校准使解调相位与输入相位匹配，相比传统仅I路基线消除可获得最大√2倍的信号幅度。
separate I/Q channels. A bio-impedance input phase (φpst) varies depending on its electrode conditions such as configuration (2E or 4E) and environment (dry or wet). However, once the conditions are set and maintained, the phase difference hardly changes. Considering this, the phase synchronizer is initially calibrated and adjusted to make the demodulation phase-matched to the input phase (Fig. 20.8.3 top right). As a result, it can provide a maximum √2 times of the signal amplitude compared with that of conventional I-only baseline cancellation, also avoiding the signal attenuation risk when using power-efficient 2E detection [3]. 1 2 Recent wearable blood pressure (BP) measurements that are based on the pulse transit
Chan Sam Park1, Hyunjoong Kim1, Kwangmuk Lee1, Dae Sik Keum2,
Dong Pyo Jang3, Jae Joon Kim1 Ulsan National Institute of Science and Technology, Ulsan, Korea SOSO H&C, Daegu, Korea 3 Hanyang University, Seoul, Korea problem without the