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Related Experiment Video

Updated: Dec 26, 2025

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A Multi-Static Radar Network with Ultra-Wideband Radio-Equipped Devices.

Anton Ledergerber1, Raffaello D'Andrea1

  • 1Institute for Dynamic Systems and Control, ETH Zurich, 8092 Zurich, Switzerland.

Sensors (Basel, Switzerland)
|March 19, 2020
PubMed
Summary
This summary is machine-generated.

Ultra-wideband (UWB) radios in everyday devices can form a multi-static radar network. This system enables real-time tracking of people for smart home applications without requiring special tags.

Keywords:
IoTRF-sensingchannel impulse responsedevice-free localizationfilteringmulti-static radarnetwork sensingpassive localizationultra-wideband

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Area of Science:

  • Electrical Engineering
  • Computer Science
  • Signal Processing

Background:

  • Ultra-wideband (UWB) radios are increasingly common in devices like mobile phones and WiFi routers.
  • Channel impulse response (CIR) measurements are crucial for UWB communication (data decoding) and localization (time-of-flight estimation).

Purpose of the Study:

  • To investigate the use of CIR measurements for augmenting UWB networks into a multi-static radar system.
  • To enable tag-free human tracking using existing UWB infrastructure.

Main Methods:

  • Experimental evaluation using off-the-shelf UWB hardware.
  • Implementation of simple, distributed filtering techniques.
  • Utilizing CIR measurements for radar network formation.

Main Results:

  • Successful experimental validation of the proposed multi-static radar approach.
  • Real-time tracking of a tag-free human subject using UWB modules.
  • Demonstration of the system's feasibility with simple, distributed filtering.

Conclusions:

  • CIR measurements can effectively transform UWB communication and localization networks into multi-static radar systems.
  • This technology facilitates tag-free human tracking, paving the way for advanced smart home applications.
  • Potential applications include smart lighting, audio systems, elderly monitoring, and security.