Shi Bo, Chen Fasheng, Zhang Genxuan, Cao Mingna, Tsau Young
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi. 2015 Aug;32(4):767-72.
In this paper, a heart rate variability analysis system is presented for short-term (5 min) applications, which is composed of an electrocardiogram signal acquisition unit and a heart rate variability analysis unit. The electrocardiogram signal acquisition unit adopts various digital technologies, including the low-gain amplifier, the high-resolution analog-digital converter, the real-time digital filter and wireless transmission etc. Meanwhile, it has the advantages of strong anti-interference capacity, small size, light weight, and good portability. The heart rate variability analysis unit is used to complete the R-wave detection and the analyses of time domain, frequency domain and nonlinear indexes, based on the Matlab Toolbox. The preliminary experiments demonstrated that the system was reliable, and could be applied to the heart rate variability analysis at resting, motion states etc.
本文提出了一种用于短期（5分钟）应用的心率变异性分析系统，该系统由心电图信号采集单元和心率变异性分析单元组成。心电图信号采集单元采用了多种数字技术，包括低增益放大器、高分辨率模数转换器、实时数字滤波器和无线传输等。同时，它具有抗干扰能力强、体积小、重量轻和便携性好等优点。心率变异性分析单元用于基于Matlab工具箱完成R波检测以及时域、频域和非线性指标的分析。初步实验表明该系统可靠，可应用于静息、运动状态等下的心率变异性分析。
