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Progress on the development of a simulation environment for optical communications

Show simple item record Shields, Joel Srinivasan, Meera Regehr, Martin W. 2013-03-01T17:44:52Z 2013-03-01T17:44:52Z 2012-01-16
dc.identifier.citation SPIE Photonics West, San Francisco, California, January 21-26, 2012 en_US
dc.identifier.clearanceno 12-1208
dc.description.abstract Deep space laser communications require extremely accurate beam pointing to take advantage of the narrow beams achievable at optical wavelengths. This pointing accuracy must be achieved in the presence of spacecraft basebody motion which may exceed laser pointing requirements by orders of magnitude. In this paper a model of an optical band transceiver pointing control system is developed that can be used to predict performance under various operating scenarios. The transceiver model consists of an electro-mechanical model of the telescope platform and isolator. A novel photon counting detector array is used in the simulation as the focal plane detector. In the simulation we are able to inject various cases of spacecraft basebody motion based on both flight data and future mission spacecraft jitter requirements. Various models of uplink beacon flux levels and atmospheric scintillation are also available for analysis. Using these models, detector processing and control functions are implemented in the simulation. A complete acquisition sequence is demonstrated with blind acquisition and tracking of the modulated uplink beam and positioning of the downlink beam on the focal plane array. These simulations predict that pointing requirements will be met with representative disturbance models and uplink beam scintillation. 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, 2012. en_US
dc.subject optical communications en_US
dc.subject isolator en_US
dc.subject fast steering mirror en_US
dc.subject pointing control en_US
dc.subject acquisition en_US
dc.subject tracking en_US
dc.subject centroiding en_US
dc.title Progress on the development of a simulation environment for optical communications en_US
dc.type Preprint en_US
dc.subject.NASATaxonomy Space Communications, Spacecraft Communications, Command and Tracking en_US

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