Joint Symbol and Chip Synchronization for a Burst-Mode-Communication Superregenerative MSK Receiver

Alexis Lopez-Riera, Francisco del Aguila-Lopez, Pere Pala-Schonwalder, Jordi Bonet-Dalmau, Rosa Giralt-Mas, F. Xavier Moncunill-Geniz
2017 IEEE Transactions on Circuits and Systems Part 1: Regular Papers  
In this paper we describe a superregenerative (SR) MSK receiver able to operate in a burst-mode framework where synchronization is required for each packet. The receiver is based on an SR oscillator which provides samples of the incoming instantaneous phase trajectories. We develop a simple yet effective technique to achieve joint chip and symbol synchronization within the time limits of a suitable preamble. We develop some general results and focus on the case of the IEEE 802.15.4 MSK physical
more » ... layer. We provide details on a VHDL implementation on an FPGA where the most complex digital processing block is an accumulator. Simulation and experimental results are provided to validate the described technique. Spain, where he has been teaching circuit theory, analog electronics, data transmission, and telematics since 1997. He has also been involved in several government and industry-funded research projects. His research interests include switched circuits, nonlinear circuits, and radiofrequency communication circuits design. Pere Palá-Schönwälder (Sâ'88-Mâ'05) received the Eng. Telecommun. and Ph.D. degrees from where he has been teaching circuit theory, analog signal processing, communications electronics, radio-frequency, and digital electronics design since 1990. He is the contact person of UPC's Communication Circuits and Systems Research group and has been the project leader of several government and industry-funded research projects. His current research interests include computer-aided circuit design, nonlinear circuits, and the design of low-power RF communication circuits.
doi:10.1109/tcsi.2016.2636022 fatcat:ni5wyiscdvfd7azwxfamvq722a