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Spectral-Efficient Pulse-Shaping Techniques for Ultra-Wideband Communications
koje će održati Ante Miloš, mag. ing. u utorak, 11. prosinca 2018. godine, u 13.00 sati, u dvorani D-160 Fakulteta elektrotehnike i računarstva Sveučilišta u Zagrebu.
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Ultra-wideband (UWB) impulse radio uses very short pulses whose spectra are regularized by Federal Communications Commission (FCC). One approach to obtain these pulses is shaping. The shaping is realized with a bandpass filter called pulse shaper. Its impulse response approximates an FCC-compliant waveform. To obtain such waveforms, various pulse-shaping techniques have been developed. Here, we present common FCC-compliant waveforms that correspond to the Gaussian derivatives. Furthermore, we describe state-of-the-art waveforms that exhibit high spectral efficiency within the FCC UWB passband. For the given waveform, we describe a method for the time-domain synthesis of analog shapers. The method is based on the least-squares error criterion and it employs zero-pole-gain model of the shaper transfer function. The features of the method are illustrated with several examples of shapers.
Ante Miloš received the Master degree in Electrical engineering and information technology from the University of Zagreb Faculty of Electrical Engineering and Computing, Zagreb, Croatia, in 2013. In 2016 he enrolled in the Doctoral study at the same faculty. Currently, he is finishing the PhD thesis in the field of pulse-shaping techniques and filter design for ultra-wideband impulse radio. After the Master study, he has been employed in the Research and Development Centre of Ericsson Nikola Tesla d.d. in Zagreb, where he works as a Software/Hardware Developer in the Radio Development Unit. In the unit, he is also a member of the Scientific Radio group, where he participates in various research activities of the project Improvements for LTE Radio Access Equipment (ILTERA) - an educational and research collaboration project between Ericsson Nikola Tesla d.d. and the Department of Electronic Systems and Information Processing of the Faculty of Electrical Engineering and Computing, University of Zagreb. He is a member of IEEE societies on Signal Processing, Communications, and Circuits and Systems.