Sentences with phrase «fm backscatter»
The team demonstrated three different methods for sending audio signals and data using FM backscatter: one simply overlays the new information on top of the existing signals, another takes advantage of unused portions of a stereo FM broadcast, and the third uses cooperation between two smartphones to decode the message.
https://www.sciencedaily.com/ Not exact matches
«Because of the unique structure of FM radio signals, multiplying the original signal with the backscattered signal actually produces an additive frequency change,» said co-author Vamsi Talla, a UW postdoctoral researcher in computer science and engineering.
A team at Disney Research is looking at harnessing a technique called ultra-wideband (UWB) ambient backscatter, which would allow IoT devices to save power and ditch their radio transmitters by piggybacking their communications on the multitude of FM and cellular signals already in the air.