| /? underwater infrared camera: https://www.google.com/search?q=underwater+infrared+camera r/rov: https://www.reddit.com/r/rov/ Bioradiolocation:
https://en.wikipedia.org/wiki/Bioradiolocation FMCW:
https://en.wikipedia.org/wiki/Continuous-wave_radar mmWave (60 Ghz) can do heartbeat detection above water FWIU. As can WiFi. mmwave (millimeter wave), UWA (Underwater Acoustic) Citations of "Analysis and estimation of the underwater acoustic millimeter-wave communication channel" (2016)
https://scholar.google.com/scholar?cites=8297460493079369585... Citations of "Wi-Fi signal analysis for heartbeat and metal detection: a comparative study of reliable contactless systems"
https://scholar.google.com/scholar?cites=3926358377223165726... /? does WiFi work underwater?
https://www.google.com/search?q=does+wifi+work+underwater https://scholar.google.com/scholar?cites=1308760257416493671... ... "Environment-independent textile fiber identification using Wi-Fi channel state information", "Measurement of construction materials properties using Wi-Fi and convolutional neural networks" "Underwater target detection by measuring water-surface vibration with millimeter-wave radar"
https://scholar.google.com/scholar?cites=1710768155624387794... : > UWSN (Underwater Sensor Network) I'm reminded of Baywatch S09E01; but those aren't actual trained lifeguards. The film Armageddon works as a training film because of all of the [safety,] mistakes: https://www.google.com/search?q=baywatch+s09e01 |