But vital signs detected by bioradar are always random signals, they are also unstable. And the interferences from the surroundings are stronger than the vital signs.
然而,由于生物雷达探测所得生命特征信号随机性强,并且是非平稳的,容易受到外界强噪声干扰。
参考来源 - 基于超宽谱生物雷达的非接触式生命特征信息提取技术研究·2,447,543篇论文数据，部分数据来源于NoteExpress
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