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Avionic Systems DivisionJohnson Space Center
NASA
Avionics and Communication Break Out Session“Discussion Starters”
Jason A. Soloff
Laura Hood
NASA/JSC
April 13, 2023 2
Avionic Systems DivisionJohnson Space Center
NASA
Near-Term Objectives forCommunications and Avionics
• Finish construction of ISS using Space Shuttle
• Develop Orion & Ares I vehicles to provide crew / cargo to ISS
April 13, 2023 3
Avionic Systems DivisionJohnson Space Center
NASANext Steps in Human Exploration
• Develop Constellation lunar vehicles (Orion, LSAM, EVA, surface systems) to enable sustained human lunar exploration
• Return to the moon through robotics and human presence
April 13, 2023 4
Avionic Systems DivisionJohnson Space Center
NASAEngineering Key Technology Interests
• Communication / Avionics systems– Signal processing / DSP techniques– Adaptive / reconfigurable hardware (software defined radio)– Error correction coding / bandwidth efficient modulation– Environment adaptive / disruption tolerant networking– Reconfigurable / adaptive processing
• Antenna / RF Technologies– Miniaturized antenna structures– E-textile technologies– Wireless sensors and RFID antennas– UWB– Smart Antennas (active phased arrays / beam formers)– Advanced GPS Antenna systems– Stabilized photonics for large antenna arrays
• Analytical– Computational electromagnetics– Automated design of RF structures (genetic algorithms, particle swarm algorithms)
April 13, 2023 5
Avionic Systems DivisionJohnson Space Center
NASASignal Processing / DSP
• Software Defined Radio– DSP / GPP– Direct sampled / Direct synthesized RF– Waveform interoperability / advanced
modulation techniques– Antenna beamforming– Adaptive network protocols & FEC
• Reconfigurable Avionics platforms– FPGA / Reconfigurable processing– Modular avionics
• Test / Validation testbeds– Rapid prototyping
– Reconfigurable waveforms, protocols
April 13, 2023 6
Avionic Systems DivisionJohnson Space Center
NASAMiniaturized Antennas
2-layer mini-PIFA w/ modified feed
(fab. by PCB vendor)
Manually soldered Tchebyscheff filter
Wireless Ethernet (802.11b/g)
2.40-2.48 GHzDrivers:
• HF & UHF likely for surface exploration– Traditionally these are large antenna structures
• Low mass & volume highly desired for robotics and mobile systems (eg. AERCam)
• Printed electronics, organic transistors– Emerging technologies may offer new approaches to
miniaturized active antenna structures
April 13, 2023 7
Avionic Systems DivisionJohnson Space Center
NASA
Antenna Design/Development
April 13, 2023 8
Avionic Systems DivisionJohnson Space Center
NASAAntenna Design/Development
April 13, 2023 9
Avionic Systems DivisionJohnson Space Center
NASAComputational Electromagnetics
• RF propagation and field strengths– EMI, RF exposure, spectrum
management
• Antenna pattern and performance modeling and analysis
• RF / high frequency structure modeling and simulation– uWave & MEMS
April 13, 2023 10
Avionic Systems DivisionJohnson Space Center
NASAPossible Topics for Discussion
• What areas of research are happening at your University that could be fruitful for collaboration?
• How can NASA and Universities work to engage students and young researchers in technologies with application to space exploration?
• What collaborations have worked well before? Why?