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Determining and Controlling External Power Output During Regular Handrim Wheelchair Propulsion

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The Power Gain Difference Method Analysis.

Jiří Veselý¹, Petr Hubáček¹, Jana Olivová¹

¹Department of Communication Technologies, Electronic Warfare and Radars, University of Defence in Brno, 66210 Brno, Czech Republic.

Sensors (Basel, Switzerland)

|May 30, 2020

Summary

This study introduces the power gain difference (PGD) technique for passive 3D localization. It estimates signal source position using received signal strength (RSS) ratios from multiple sensors without knowing transmit power.

Keywords:

Cramer–Rao lower bound localization techniques object tracking received signal strength

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Area of Science:

Signal Processing
Wireless Communications
Geospatial Analysis

Background:

Passive localization of signal sources is crucial for various applications.
Existing methods often require prior knowledge of signal parameters like transmit power.
Accurate 3D positioning remains a challenge in complex environments.

Discussion:

The proposed Power Gain Difference (PGD) technique utilizes received signal strength (RSS) measurements from multiple sensors.
It estimates the 3D position of a signal source without needing to know its transmit power or equivalent isotropic radiated power (EIRP).
The method relies on analyzing the ratios of RSS measurements across different sensors.

Key Insights:

A geometric representation and analytical solution for the PGD model are presented.
The PGD dilution of precision was analyzed to assess measurement accuracy.
Numerical simulations demonstrate the performance of the PGD technique.

Outlook:

The PGD technique shows potential as a simple and effective solution for 3D localization problems.
Further research can explore its performance in real-world scenarios with varying signal conditions.
This passive localization method could be integrated into various sensor networks.