St. Petersburg Electrotechnical University "LETI" has developed a Wi-Fi-based radar system. It will allow you to accurately find objects in
Bad weather can interfere with the cameras,insufficient lighting, etc. A first-year master's student at the Faculty of Radio Engineering and Telecommunications of St. Petersburg Electrotechnical University "LETI" found a way to solve the problem. She suggests using Wi-Fi signals.
“The main idea of the project is thata moving target affects the communication channel of the Wi-Fi signal in terms of Doppler frequency shift, signal propagation paths and attenuation,” the student explained.
In the Wi-Fi system she developed, the router emits a reference signal, which is then processed. This technology is devoid of the disadvantages of conventional cameras.