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Maximum likelihood synchronization for pulse position modulation with inter-symbol guard times

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dc.contributor.author Rogalin, Ryan
dc.contributor.author Srinivasan, Meera
dc.date.accessioned 2019-06-12T15:26:19Z
dc.date.available 2019-06-12T15:26:19Z
dc.date.issued 2016-12-04
dc.identifier.citation IEEE Globecom 2016, Washington, DC, December 4-8, 2016 en_US
dc.identifier.clearanceno 16-4636
dc.identifier.uri http://hdl.handle.net/2014/46244
dc.description.abstract Deep space optical communications promises orders of magnitude growth in communication capacity, supporting high data rate applications such as video streaming and high-bandwidth science instruments. Pulse position modulation is the modulation format of choice for deep space applications, and by inserting inter-symbol guard times between the symbols, the signal carries the timing information needed by the demodulator. Accurately extracting this timing information is crucial to demodulating and decoding this signal. In this paper we propose a low complexity maximum likelihood timing estimator for pulse position modulation with inter-symbol guard times which significantly outperforms the prior art in this domain. We show that this estimator can achieve the same performance as prior estimators with an order of magnitude less signal flux, or multiple orders of magnitude less flux-accumulation time. Further we show that this estimator achieves the Cram´er-Rao bound, making it asymptotically efficient. This method does not require an explicit synchronization sequence, freeing up channel resources for data transmission. en_US
dc.description.sponsorship NASA/JPL en_US
dc.language.iso en_US en_US
dc.publisher Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2016 en_US
dc.title Maximum likelihood synchronization for pulse position modulation with inter-symbol guard times en_US
dc.type Preprint en_US


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