SDR-based Radar for Human Detection
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Published:2022-12-29
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Volume:
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ISSN:1943-5711
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Container-title:The Applied Computational Electromagnetics Society Journal (ACES)
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language:
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Short-container-title:ACES Journal
Author:
Perotoni Marcelo B.,Santos Kenedy M. G. dos,Almeida Danilo B.,Jonathas Daniel
Abstract
Software-defined radios (SDRs) have been applied to several applications, taking advantage of their inherent versatility. It is reported a low-cost radar intended to detect human activity, at the frequency of 4.1 GHz, with an SDR on the receiving branch and a programmable RF synthesizer operating as a continuous-wave transmitter. Amplitude variations on the received signal indicate human activity, its operation is tested in indoor and outdoor scenarios. The interface to the SDR is performed using the open-source tool GNU Radio. It was possible to detect human movement at a maximum distance of 9 meters, in an open area. The system is versatile in terms of power and frequency, totally controlled by software in a transparent and straightforward way.
Publisher
River Publishers
Subject
Electrical and Electronic Engineering,Astronomy and Astrophysics