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脉象是中医辨证施治的重要依据,古代就有“切之以九脏之动”,“微妙在脉,不可不察”之说.但长期以来,中医一直是靠手指的感觉来获取和分辨脉象.因而,存在一些主观臆断因素.人们渴望对中医脉象能有一个客观、定量的辨识标准,以便更细致、更科学地揭示脉象的实质与特征.过去国内在时域内对这一研究做了不少工作.1983年加拿大和中国台湾学者在频域内分析了脉搏信号的特征.本文首次采用倒谱及倒滤波技术研究人体脉搏信号,获得了脉象的功率倒谱、倒滤波谱及其特征值,发现由频域返回时域的特征值能更好地反映脉象的实质差异.
The pulse is an important basis for the TCM syndrome differentiation and treatment, and in ancient times there was the saying of “moving the nine internal organs” and “delicate veins, which can not be noticed.” However, for a long time, Chinese medicine has always been acquired and resolved by the feeling of fingers Therefore, there are some subjective assumptions.People are anxious to have an objective and quantitative identification standard for TCM pulse in order to reveal the essence and characteristics of the pulse more meticulously and scientifically.In the past, this research was done in the time domain A lot of work.In 1983, Canada and China Taiwan scholars in the frequency domain analysis of the characteristics of pulse signals.This paper for the first time using cepstrum and inverted filter technology to study the human pulse signal, pulse power cepstrum, filter and its eigenvalues , It is found that the eigenvalues of the time domain returned from the frequency domain can better reflect the real difference of the pulse.