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Fractional fourier transform based co-radar waveform : experimental validation

Gaglione, Domenico and Clemente, Carmine and Persico, Adriano Rosario and Ilioudis, Christos V. and Proudler, Ian K. and Soraghan, John J. (2016) Fractional fourier transform based co-radar waveform : experimental validation. In: 2016 IEEE Sensor Signal Processing for Defence (SSPD). IEEE, Piscataway, NJ.. ISBN 9781509003266

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A Fractional Fourier Transform (FrFT) based waveform design for joint radar-communication systems (Co-Radar) that embeds data into chirp sub-carriers with different time-frequency rates has been recently presented. Simulations demonstrated the possibility to reach data rates as high as 3.660 Mb/s while maintaining good radar performance compared to a Linear Frequency Modulated (LFM) pulse that occupies the same bandwidth. In this paper the experimental validation of the concept is presented. The system is considered in its basic configuration, with a mono-static radar that generates the waveforms and performs basic radar tasks, and a communication receiver in charge of the pulse demodulation. The entire network is implemented on a Software Defined Radio (SDR) device. The system is then used to acquire data and assess radar and communication capabilities.