基于傅里叶变换的心电模拟器校准方法研究

摘要

通过对心电模拟器输出波形特点的研究,提出用快速傅里叶变换进行模拟心电信号分析的方法,通过理论推导,验证这一方法运用于校准心电模拟器的可行性,并提出一种心电模拟器校准的解决方案,即用PULSE多分析仪作为心电模拟器的校准装置,进行模拟心电信号的校准.在此方案的基础上,对这种校准装置的可行性进行了论证,并通过实际测量结果,验证了这种心电模拟器校准装置的可行性.%Based on the investigation for the signals outputed of ECG simulators, a method is put forward to analyze signals outputed from ECG simulators by using FFT transform. A new plan is proposed to calibrate ECG simulators in actual operation process, which calibrates ECG simulator with PULSE analyzers. Based on this plan, the feasibility of the new calibration equipments is proven. The actual measurement results validate the new calibration equipment for ECG simulators.