Phase averaging on CSI from commercial 802.11ac devices detects bird motion several meters off LOS in outdoor low-multipath settings while keeping vegetation effects negligible below 3 m/s wind.
FarSense: Pushing the range limit of Wi-Fi-based respiration sensing with CSI ratio of two antennas,
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CSI Phase Averaging for High-Sensitivity Wi-Fi Sensing in Low-Multipath Environments
Phase averaging on CSI from commercial 802.11ac devices detects bird motion several meters off LOS in outdoor low-multipath settings while keeping vegetation effects negligible below 3 m/s wind.