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http://dx.doi.org/10.5515/KJKIEES.2017.28.4.347

Implementation of Real-Time Direction Finding System Using Time-Modulated Array with Two Antenna Elements and One USRP  

Lee, Sangjoon (Department of Electrical Engineering, Kookmin University)
Yoon, Hyungoo (Department of Computer Electronic Engineering, Myoungji College)
Choo, Hosung (School of Electronic and Elctrical Engineering, Hongik University)
Jang, Byung-Jun (Department of Electrical Engineering, Kookmin University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.28, no.4, 2017 , pp. 347-350 More about this Journal
Abstract
In this paper, we implemented a real-time 2.4 GHz direction finding system using a time-modulated array(TMA) and an Universal Software Radio Peripheral(USRP). Our system consists of two commercial monopole antennas, self-designed switch board, and an USRP, and it is controlled using LabVIEW program in real-time. From measured results, it is verified that our system can exactly detect the incident angle within 4 degree in the range of 30 degree. Our direction finding system has advantages of a simple hardware architecture than conventional one with multiple receivers, and a simple algorithm only by using a main lobe and a first side-lobe of switching frequency.
Keywords
TMA; Direction-Finding; USRP; Real-Time; LabVIEW; Harmonic Analysis;
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  • Reference
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