脉诊信息影响因素及处理方法的研究

目的研究正常呼吸、说话、咳嗽、肢体运动及外界环境等因素对脉诊信息的影响，并寻求排除上述影响因素干扰的数据处理方法。方法分别在安静自然呼吸状态，以及说话、轻微咳嗽、上肢有规律上举和听快节奏音乐时记录12名正常人脉搏波，观察人体在不同影响因素下的脉搏波变化。数据处理时采用离散余弦变换（DCT）方法将上诉影响因素所造成的低频信号过滤，然后进行反OCT变换将数据还原，以达到数据预处理的目的。结果说话、咳嗽、肢体运动及外界环境等因素对脉诊信息的影响非常显著，其中以咳嗽最为显著，说话、运动次之，呼吸的影响是最有规律并且在采集过程中不能避免的。通过DCT处理后的数据可以在一定程度上排除上述干扰，为脉诊信息的采集和分析提供稳定性保障。结论脉诊信息受到诸多外界因素的影响，DCT变换可以部分解决这一问题。

Research of Affecting Factors of Pulse Diagnosis Signals and Processing Method

Objective To study the effects on signals of pulse diagnosis by the factors such as breath,talking,cough,movement and environment,etc.,and try to find the processing method to obviate the interference.Methods The data of 12 normal persons' pulse waves were recorded and the changes were observed when they were under the conditions such as breathing naturally,talking,coughing,lifting their upper limbs and listening to some music of rapid rhythm.Then the signals of low frequency by the movement were filtrated ...