Joint symbol and chip synchronization for a burst-mode-communication superregenerative MSK receiver
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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 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.
CitationLópez, A., Aguila, F., Palà-Schönwälder, P., Bonet-Dalmau, J., Giralt, M., Moncunill, F. X. Joint symbol and chip synchronization for a burst-mode-communication superregenerative MSK receiver. "IEEE transactions on circuits and systems I: regular papers", 5 Gener 2017, vol. 64, núm. 5, p. 1260-1269.