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天线的极化方式对生命探测仪检测效果的影响
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【医学毕业论文网】 作者:张杨,王健琪,焦腾,荆西京【关键词】 生命探测仪Influence of two antenna polarization modes on detecting effect of LifeDetection Instrument 【Abstract】 AIM: To discuss the influence of two antenna polarization modes (horizontal polarization and vertical polarization) on the detecting effect of LifeDetection Instrument. METHODS: Respiration signal in horizontal polarization and vertical polarization modes on 10 people were respectively sampled and the amplitudes of the two types of signals were compared. The power of signals in the two polarization modes was estimated, and paired ttest on the estimated values of the power in the 2 groups was conducted. RESULTS: The amplitude of respiration wave in horizontal polarization mode was higher than that in vertical polarization mode. Significant difference existed in the power in the two polarization modes(P<0.01). CONCLUSION:
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