Presentation on theme: "Liz Hyde San Jose State University"— Presentation transcript:
1Liz Hyde San Jose State University Combining Laser Communications and Power Beaming for use on Planetary ProbesLiz HydeSan Jose State University
2Agenda Introduction Improvements Proving the Technology Conclusions Current issues for Planetary Probes: Communications and PowerSolutions: Laser Communications and Power BeamingImprovementsCombine two units into one!Proving the TechnologyCubeSat-based Technology Demonstration MissionConclusions
3Introduction: Current Issues CommunicationsPowerIncreased data package size requires improvements in data rateAlternative communication methods desired as to not congest RF bandsNew developments in sensor technology increase the need of high-voltage powerSolar power is unreliable at distances >1.5 AUValuable data can be lost while probes are in eclipse
6A Solution: Laser Communications Laser Communications can increase data rate 100-1,000x that of traditional RF radios.Technology has been tested in space (LRO, LADEE )Technology also being used on the ground for military applications (Ship-to-Ship, UAV-to-Ground)
7Laser Comms: How it Works 100101100101010Digital DataLaserPhotovoltaicCellsDecoder*Think of Morse Code, transmitted by laser!
8A Solution: Laser Power Beaming Wireless power transfer idea has been around since 1950’sTechnology also applies to Space-to-Ground and Ground-to-Space applicationsSpace-to-Space demonstration in 2005 (JAXA/ESA)
10Bonus Improvement: Integrate Comms and Power Systems Laser Communications and Laser Power have one big thing in common: the Laser!A laser suited for Communications would also be suited for Power BeamingUsing one laser for multiple purposes saves on mass and volume.
12How To Demonstrate the Technology? CubeSats! CubeSats have been used to for low-cost, fast-schedule technology demonstration missionsUsing heritage equipment focuses development on payloads
13Demo Mission: The Satellites PitcherCatcherPayload contains the Laser that will transmit both data and electrical powerAvionics based off of previously flown designs (TechEdSat)Data is pre-loaded packets consisting of sample images (high-res images, sensor data, etc)Payload consists of a deployable “target” photovoltaic arrayIncluded is the data and power decoding unitAvionics based off of previously flown designs (TechEdSat)Data transmitted to the ground using traditional RF means
17ConclusionsBoth Laser Communications and Laser Power Beaming provide benefits for space probesAn added benefit to these technologies is the ability to have one unit preforming multiple tasksTesting this technology with CubeSats may pave the way to larger usage of the technology
18Acknowledgements Dr. Periklis Papadopolus James Grady Marcus Murbach San Jose State UniversityJames GradyGlobal Enterprise Initiative Inc.Marcus MurbachNASA Ames Research Center
19Thanks for your interest! Liz.L.Hyde@gmail.com Questions?Thanks for your interest!