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天线的极化方式对生命探测仪检测效果的影响 |
| [高血压医学论文] 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: Power of respiration signal in horizontal polarization mode is obviously higher than that in vertical polarization mode. When testing the standing objects, the detecting effect in horizontal polarization mode is better than that in vertical polarization mode.
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| 投稿人：gf6h6 |
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最后编辑：647754 |
高血压医学论文 | 高血压医学论文 |
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