The isolated a subunit binds oxygen, but the O2 saturation curve is hyperbolic rather than sigmoid. 分离的a-亚基能与氧结合,但氧饱和曲线为双区线而不是S型。
Then, we propose a method of how to extract pulse oximetry signal characteristic point based on wavelet transform to precisely extract oxygen signal feature points; complete calibration oxygen saturation and temperature by the method of fitting curve. 然后提出了基于小波变换的脉搏血氧信号特征点提取方法,实现血氧信号特征点的准确提取;通过拟合曲线法完成血氧饱和度和温度的标定。