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Multifunctional Software-Defined Radar Sensor and Data Communication System

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3 Author(s)
Garmatyuk, D. ; Dept. of Electr. & Comput. Eng., Miami Univ., Oxford, OH, USA ; Schuerger, J. ; Kauffman, K.

Orthogonal frequency-division multiplexing (OFDM) signal coding and system architecture were implemented to achieve radar and data communication functionalities. The resultant system is a software-defined unit, which can be used for range measurements, radar imaging, and data communications. Range reconstructions were performed for ranges up to 4 m using trihedral corner reflectors with approximately 203 m of radar cross section at the carrier frequency; range resolution of approximately 0.3 m was demonstrated. Synthetic aperture radar (SAR) image of a single corner reflector was obtained; SAR signal processing specific to OFDM signals is presented. Data communication tests were performed in radar setup, where the signal was reflected by the same target and decoded as communication data; bit error rate of was achieved at 57 Mb/s. The system shows good promise as a multifunctional software-defined sensor which can be used in radar sensor networks.

Published in:

Sensors Journal, IEEE  (Volume:11 ,  Issue: 1 )