Sökning: "analog-backscatter"

Hittade 2 uppsatser innehållade ordet analog-backscatter.

1. 1. Battery-free Visible Light Sensing

   Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Avdelningen för datorteknik

   Författare :Andreas Soleiman; [2019]
   Nyckelord :Networked embedded systems; Visible light sensing; RF backscatter; Energy harvesting;

   Sammanfattning : In this thesis, we show that it is possible to design a battery-free light sensing system that can sense and communicate hand gestures while operating fully on harvested power from indoor light. We present two main innovations that push our system to tens of microwatts of power to enable battery-free operation. LÄS MER

3. 2. Towards Battery-free Radio Tomographic Imaging : Battery-free Boundary Crossing Detection

   Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Författare :Abdullah Hylamia; [2018]
   Nyckelord :battery-free; radio-tomographic-imaging; boundary-crossing; analog-backscatter; envelope-detector; radio-frequency; batterifri; radiotomografisk avbildning; gränsöverskridande; analogbakåtskridande; kuvertdetektor; radiofrekvens;

   Sammanfattning : Radio tomographic imaging (RTI) is a novel device-free localization technique which utilizes the changes in radio signals caused by obstruction to enable various sensing applications. However, the deployment of these applications is hindered by the energy-expensive radio sensing techniques employed in these systems. LÄS MER