An optical fiber interferometer-based ballistocardiography (BCG) monitoring system aided with the IJK complex detection algorithm is proposed in this paper. A new phase modulation method based on a moving-coil transducer is developed to address the problem of signal fading in the optical fiber interferometer and keep the system in quadrature by the closed loop controller. As a result, a stable BCG signal without baseline drift can be obtained. This BCG monitor based on optical fiber interferometer using phase modulation method owns the advantages of compact, low-cost, portable, and user-friendly. In addition, an end-to-end modified U-net is developed to conduct pixel-wise classification in the BCG signal. This network can achieve high accuracy and shows its capability to segment IJK complex and body movement in the BCG signal. In conclusion, the proposed BCG monitoring system with IJK complex segmentation algorithm is potential and promising in healthcare applications.

中文翻译：

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基于心律分割算法的光纤干涉仪心电图监测系统

提出了一种基于IJK复杂检测算法的基于光纤干涉仪的心动描记法（BCG）监测系统。提出了一种基于动圈式换能器的新型相位调制方法，以解决光纤干涉仪中信号衰减的问题，并通过闭环控制器使系统保持正交。结果，可以获得没有基线漂移的稳定的BCG信号。这种基于采用相位调制方法的光纤干涉仪的BCG监护仪具有紧凑，低成本，便携式和用户友好的优点。另外，开发了端到端的修改后的U-net，以在BCG信号中进行按像素分类。该网络可以实现高精度，并显示其在BCG信号中分割IJK复合体和人体运动的能力。结论，