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D R&T Challenges for Dynamics, Navigation, and Control, and Avionics
Pages 136-151

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From page 136...
... The determination of milestones include the desired trajectory usually takes into account missiondependent constraints, which can include obstacles (such as · Development of advanced algorithms and avionics for terrain, wake vortices, or other aircraft) , hazards (such as collision, terrain, and wake vortex avoidance; formaweather)
From page 137...
... APPENDIX D 137 TABLE D-1 Prioritization of R&T Challenges for Area D: Dynamics, Navigation, and Control, and Avionics Strategic Objective Why NASA? t ce en mn e y manro rit viro cturu Risk Sponsors Score of En Perf Secu astr d Reliability eht hti acep Infr Level Score an d w S Composite and cy an ies tot Alignment ting Alternative y Priority of cienif erg Priority erg uppor uppor NASA Capacity Safety Ef En Syn S S Mission Lack Appropriate R&T Challenge Weight 1 5 3 1 National /4 each Why NASA D1 Advanced guidance systems 9 9 9 3 3 3 132 9 9 3 9 7.5 990 D2 Distributed decision making, decision making under uncertainty, and flight-path 9 9 9 3 3 3 132 3 9 3 9 6.0 792 planning and prediction D3 Aerodynamics and vehicle dynamics via 1 9 9 3 3 3 92 9 9 3 9 7.5 690 closed-loop flow control D4 Intelligent and adaptive flight control 3 9 9 3 3 9 108 3 9 3 9 6.0 648 techniques D5 Fault-tolerant and integrated vehicle health 3 9 3 1 3 9 84 9 9 3 9 7.5 630 management systems D6 Improved onboard weather systems and 9 9 3 1 1 1 104 9 9 3 3 6.0 624 tools D7 Advanced communication, navigation, and 9 9 9 3 3 3 132 3 9 3 3 4.5 594 surveillance technology D8 Human­machine integration 3 9 9 1 3 3 96 3 9 3 9 6.0 576 D9 Synthetic and enhanced vision systems 3 9 3 1 1 3 76 9 9 3 3 6.0 456 D10 Safe operation of unmanned air vehicles in 3 9 3 1 9 1 82 3 9 3 3 4.5 369 the national airspace D11 Secure network-centric avionics architectures and systems to provide low cost, efficient, fault-tolerant, onboard 9 9 9 1 9 3 132 3 3 1 3 2.5 330 communications systems for data link and data transfer D12 Smaller, lighter, and less expensive 1 3 9 3 3 9 68 3 3 3 3 3.0 204 avionics D13 More efficient certification processes for 3 9 9 1 1 3 94 3 1 1 3 2.0 188 complex systems D14 Design, development, and upgrade processes for complex, software-intensive systems, including tools for design, 3 9 3 1 1 3 76 1 3 1 1 1.5 114 development, and validation and verification
From page 138...
... A coordinated, distributed approach to decision Safety and Reliability (9) : The capability to accomplish making increases air transportation system reliability and dynamic high-quality flight path planning and replanning in safety by distributing control and mission management ca- the dynamic airspace environment will allow closer aircraft pabilities among multiple agents.
From page 139...
... ing. Key milestones include Mission Alignment (9)
From page 140...
... The current state of the Relevance to Strategic Objectives art in VMS uses traditional feedback control, consisting of measurements of vehicle states such as airspeed, altitude, Capacity (3) : Advancing the state of the art in propulsion angle of attack, and linear and angular acceleration (Jaw and and flight control will allow manned and unmanned aircraft Garg, 2005)
From page 141...
... Synergies with National and Homeland Security (3) : Ad- Redundancy management strategies for avionics and the vanced propulsion and flight control can improve mission airframe directly influence options for recovery and capability, safety, and supportability, which are important to reconfiguration.
From page 142...
... This reduces recovering from detected faults, including reconfiguration environment effects, but only to a small degree. of the flight control system for in-flight failures of manned Synergies with National and Homeland Security (3)
From page 143...
... Key milestones include surveillance (CNS) technology The capacity of the air transportation system is dependent · Develop robust and reliable data links for collecting on minimum spacing requirements for safe operation.
From page 144...
... failed. This will require control algorithms that can handle multiple failures in terms of controlling the air Key milestones include craft with the failures as well as adjacent traffic to mini mize the impact on airspace capacity and efficiency.
From page 145...
... and tools include Synergy with National and Homeland Security (3) : This Challenge will benefit military aircraft that operate aircraft · Develop improved system engineering processes and in civil airspace.
From page 146...
... The facilities at NASA Ames and Langley Research Centers provide a unique environment Key milestones include for integrated, human-in-the-loop simulation of both flight deck and ATM technologies. These facilities have been spe · Prepare an accurate and complete terrain and obstacles cifically designed and instrumented for evaluation of ad database and demonstrate real-time database monitorvanced concepts for human­machine integration in a high ing and error correction.
From page 147...
... formation, combined with flight trajectory information, can result in more efficient flight paths. Key milestones include Energy and the Environment (1)
From page 148...
... space and parts of the air transportation system. DARPA Lack of Alternative Sponsors (1)
From page 149...
... . Key milestones include Support to Space (9)
From page 150...
... complex, software-intensive systems, including tools Key milestones include for design, development, and validation and verification · Validate that following specific processes will produce required assurance levels. The introduction of software and digital components has · Demonstrate processes for certifying products such as allowed the development of increasingly complex systems software, where testing is unable to provide required but at the same time has required changes and additions to levels of confidence.
From page 151...
... AIAA-2005-6219, Proceedings the effect is indirect. of the AIAA Atmospheric Flight Mechanics Conference, San Francisco, Synergies with National and Homeland Security (1)


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