传统的脉搏血氧R值提取大多采用脉搏波的峰谷值法.一个脉搏周期的峰谷值往往不能反映真实的R值，因此通常采用多个周期峰谷值的平均来提高R值的精度。提供了移动平均算法进行脉搏血氧信号特征值提取源码。-Traditional pulse oximetry R value extraction most of the peak value of the pulse wave method. A peak value of pulse cycles often do not reflect the true R value, usually more than one cycle, the average of the peak value to improve the accuracy of the R value. Moving average algorithm to extract the source pulse oximeter signal eigenvalue.