家兔不同发热反应的体温功率谱分析

Power spectral analysis of body temperature in different febrile responses in rabbits

本研究对不同热型的发热体温信号作功率谱分析,发现各具时域特征的多种发热在频域中表现为相当一致的统一性,即它们的功率谱均为低频段的单一谱峰,其幅值大小与发热反应强弱成正比。功率谱密度值与时域指标体温反应指数(TRI)有极好的相关性。

The signals of body temperature from 4 different febrile patterns were sampled for power spectral analysis. The results showed that the spectrums had no difference between their distribution in frequency domain, only a low frequency peak has been seen. The values of the power spectrum varied directly to the intensity of the febrile responses. A high degree of relationship was found between the power spectral density and thermal response index (TRI).