Unverified50% confidenceFactExact time
OFDM（正交频分复用）自802.11a起被引入，在802.11n/ac/ax（WiFi 4/5/6）中广泛应用
1
Sources
50%
Confidence
Long-term
Relevance
7/6/2026
First Seen
Sources
RuView: Camera-Free Spatial Awareness and Vital Sign Monitoring Using Ordinary WiFi Signals
githubGitHub Trending7/5/2026
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