LLCD Accomplishments No Issues with Atmospheric Effects like Fading and Turbulence. Transmitting Data at 77 Mbps < 5 above the horizon

Transcription

1 LLCD Accomplishments No Issues with Atmospheric Effects like Fading and Turbulence Transmitting Data at 77 Mbps < 5 above the horizon

2 LLCD Accomplishments Streaming HD Video and Delivering Useful Scientific Data from LADEE to Earth Real LADEE Science Data and Telemetry Transmitted via LLCD

3 Disruption-Tolerant Networking (DTN) Demo on LLCD Delivers File Bundles after Brief Cloud Outage Good Link and bundle delivery Link Outage Link resumes / lost bundles received UNCLASSIFIED 3

4 SCaN s Laser Communications Program: Next Steps DEEP SPACE OPTICAL COMMUNICATIONS

5 Deep-Space Optical Communications (DSOC) from Mars Overview, Capabilities and Footprint 1550 nm Spacecraft Flight Laser Transceiver (FLT) 4W, 22 cm dia. Beacon & Uplink 1030 nm AU CBE MASS (kg) 28 Mass margin (%) 30 CBE POWER (W) 76 Power Margin (%) 31 Performance using 4W average laser power w/22 cm flight transceiver to 5m ground telescope Optical Head: 45 x 45 x 49 cm (95E3 cc) Elect. Box: 29 x 23 x 23 cm (15E3 cc) Ground Laser Transmitter (GLT) Table Mtn., CA 5kW, 1m-dia. Telescope Deep Space Network (DSN ) Ground Laser Receiver (GLR) Palomar Mtn., CA 5m-dia. Hale Telescope Optical Comm Ops Ctr. JPL, Pasadena, CA TBD MOC This document has been reviewed and determined not to contain export controlled technical data. 5

6 Optical Comm for the Mars 2020 Rover Optical Terminal will support dual links: Proximity link, to optical terminal on orbiter (20 Mb/s max) Direct-To-Earth link (200 kb/s max, from 0.5 AU) Optical Aperture Diameter: 5 cm Average Laser Power: 1 W DC Power Consumption: 50 W Mass: 5.7 kg Volume: 4.6 liters 173 mm Rover Optical Terminal 159 mm 6

7 SCaN s Laser Communications Program: Next Steps NEAR-EARTH OPTICAL COMMUNICATIONS

8 Laser Communication Relay Demonstration (LCRD) Mission for 2018 Commercial Spacecraft Host Flight Payload Two LLCD-based Optical M odules and Controller Electronics M odules Two Differential Phase Shift Keying (DPSK) M odems with BW > Gbps (user rate) High Speed Electronics to interconnect the two terminals, per form data processing, and to inter face with the host spacecraft Two Optical Communications Ground Stations Upgraded JPL Optical Communications Telescope Laborator y (Table M ountain, CA) Upgraded LLCD Lunar Laser Ground Terminal (W hite Sands, NM ) LCRD M ission Operations Center 2 to 5 years of operational network experiments 8 8

9 SCaN s Laser Communications Program: Next Steps TECHNOLOGY DEVELOPMENT EFFORTS

10 G. Moore s Crossing the Chasm Model for High-Tech Markets Pragmatists Each group has different expectations for a new, disruptive product: Innovators see a competitive advantage to allow them to leapfrog their competition While Pragmatists want a COMPLETE SOLUTION to a business problem (the Whole Product Model) 10

11 The Whole Product Model for Infusing Optical Comm into NASA Missions Compliance with Policy (FAA, LCH); Interoperability With other Agencies (ESA, ect.) Non-Ph.D Operators, Integrators; Documentation CFLOS Analysis; Countering Weather with Multiple Ground Stations; Providing Fiber Connectivity While Minimizing Service Costs; Training and Support Ground Network Standards and Procedures Generic Product Additional Software Commercialization Disruption-Tolerant Networking (DTN), Integrated Operations And Provisioning SW Additional Hardware System Integration Leveraging Telecom Industry COTS Components While Building a Vendor Base for Custom HW; DRIVING COSTS DOWN Buffer and Burst Edge Electronics; Dealing with Multiple Spacecraft C&DH Interfaces (SpW, MIL-STD-1553, ect) Calibration and Certification Test Facilities at NASA

12 Lunar Relay Lunar Relay Payload (potential) Titan Saturn Neptune Uranus LADEE Pluto Charon Jupiter Laser Comm Relay Demo SCaN CSME Mars NISN MCC Venus Sun Mercury Antenna Array MOCs Deep Space Optical Relay Pathfinder 2018 Add: SCaN Add: Services Add: Provide: Service Space Deep Integrated Standard Based Space Management service-based Services Relay Optical Initial Element and architecture Interfaces Capability Space Enhanced Space Delay Internetworking internetworking Tolerant Optical Initial Networking Capability (DTN and IP) Deep Significant International Deep Space Space Increases Optical interoperability Antenna Relay Bandwidth Array Pathfinder Near Lunar Retirement Significant Lunar Earth Relay Optical Initial increases of Aging Pathfinder Capability Initial RF Systems bandwidth Capability to (LADEE) Support TDRS Exploration TDRS M K, L Lunar Increased Relay Payload microwave (potential) link data rates Uniform commitment process via Customer Space Internetworking throughout Solar System Lunar Comm Relay Demo and ISS Terminal Mars Orbiting Data Relay Satellite Capability Possible streaming video from Mars 12 Microwave Links Optical Links NISN