1 to 10 of 27 Results
Jul 17, 2022
Chien, Steve; Parjan, Shreya; Harrod, Ryan, 2022, "Distributed Observation Allocation for a Large-Scale Constellation", https://hdl.handle.net/2014/56125, IEEE IGARSS 2022, Kuala Lumpur, Malaysia, July 17-22, 2022, JPL Open Repository
Increased space and ground sensing is enabling dramatic new measurements of a wide range of Earth Science and Applied Earth Science phenomena, including: volcanism, flooding, wildfires, and weather. Large scale observations constellations of hundreds of assets already exist (e.g.... |
Jul 17, 2022
Smith, Ben; Kumar, Sujay; Nguyen, Louis; Chee, Thad; Mason, James; Chien, Steve; Frost, Chad; Akbar, Ruzbeh; Moghaddam, Mahta; Getirana, Augusto; Grogan, Paul; Capra, Leigha, 2022, "Demonstrating a New Flood Observing Strategy on the Nos Testbed", https://hdl.handle.net/2014/56124, IEEE IGARSS 2022, Kuala Lumpur, Malaysia, July 17-22, 2022, JPL Open Repository
A new observing strategy for floods was demonstrated and evaluated in a testbed environment. The strategy coordinates several observing platforms, including in situ and space based, to observe a flood from multiple vantage points and to dynamically target predicted flood events w... |
Jun 22, 2022
Wang, Daniel; Russino, Joseph A.; Basich, Connor; Chien, Steve, 2022, "Analyzing the Efficacy of Flexible Execution, Replanning, and Plan Optimization for a Planetary Lander", https://hdl.handle.net/2014/56174, ICAPS 2022 - International Conference on Automated Planning and Scheduling, Singapore Management University, Singapore, June 22-24, 2022, JPL Open Repository
Plan execution in unknown environments poses a number of challenges: uncertainty in domain modeling, stochasticity at execution time, and the presence of exogenous events. These challenges motivate an integrated approach to planning and execution that is able to respond intellige... |
May 24, 2022
Chien, Steve, 2022, "Formal Methods for Trusted Space Autonomy, Boon or Bane?", https://hdl.handle.net/2014/56170, NFM 2022 - NASA Formal Methods, Pasadena, California, May 24-27, 2022, JPL Open Repository
Trusted Space Autonomy is challenging in that space systems are complex artifacts deployed in a high stakes environment with complicated operational settings. Thus far these challenges have been met using the full arsenal of tools: formal methods, informal methods, testing, runti... |
May 9, 2022
Chien, Steve; Parjan, Shreya; Harrod, Ryan, 2022, "Distributed Observation Allocation for a Large-Scale Constellation", https://hdl.handle.net/2014/56156, The 13th Workshop on Optimization and Learning in Multiagent Systems, Auckland, New Zealand, May 9-10, 2022, JPL Open Repository
Increased space and ground sensing is enabling dramatic new measurements of a wide range of Earth Science and Applied Earth Science phenomena, including: volcanism, flooding, wildfires, and weather. Large scale observations constellations of hundreds of assets already exist (e.g.... |
Mar 5, 2022
Towfic, Zaid J; Ogbe, Dennis; Sauvageau, Joe; Sheldon, Douglas; Jongeling, Andre; Chien, Steve; Mirza, Faiz; Dunkel, Emily; Swope, Jason; Ogut, Mehmet; Cretu, Vlad, 2022, "Benchmarking and Testing of Qualcomm Snapdragon System-on-Chip for JPL Space Applications and Missions", https://hdl.handle.net/2014/56085, 2022 IEEE Aerospace Conference, Big Sky, Montana, March 5-12, 2022, JPL Open Repository
As some space missions become more challenging due to new environments, greater distances, or more limited size, weight, and power (SWaP) constraints, spacecraft avionics must adapt to allow the spacecraft to be more autonomous and agile---eliminating the Spacecraft-Earth-Spacecr... |
Aug 2, 2021
Basich, Connor; Wang, Daniel; Russino, Joseph A; Chien, Steve; Zilberstein, Shlomo, 2021, "A sampling-based optimization approach to handling environmental uncertainty for a planetary lander", https://hdl.handle.net/2014/55050, 31st International Conference on Automated Planning and Scheduling (ICAPS 2021), Guangzhou, China, August 2-3, 2021, JPL Open Repository
Planning for unknown environments presents a number of technical challenges. The planner must ensure robustness to unknown phenomena and manage unpredictable variation in execution, all while operating in a capacity that maximizes its objective. Productivity in the face of these... |
Jul 27, 2021
Basich, Connor; Wang, Daniel; Russino, Joseph A.; Zilberstein, Shlomo; Chien, Steve, 2021, "A Sampling-Based Optimization Approach to Handling Environmental Uncertainty for a Planetary Lander", https://hdl.handle.net/2014/55229, 12th International Workshop on Planning and Scheduling for Space (IWPSS 2021), Pasadena, California, July 27-29, 2021, JPL Open Repository
Planning for unknown environments presents a number of technical challenges. The planner must ensure robustness to unknown phenomena and manage unpredictable variation in execution, all while operating in a capacity that maximizes its objective. Productivity in the face of these... |
Jul 27, 2021
Mirza, Faiz; Swope, Jason; Chien, Steve, 2021, "Benchmarking Planning Applications on the Qualcomm Snapdragon", https://hdl.handle.net/2014/55250, IWPSS 2021, Pasadena, California, July 27-29, 2021, JPL Open Repository
We benchmark several space planning/scheduling applications on the Qualcomm Snapdragon 855 Handheld Development Kit (HDK), a high performance embedded processor used in many mobile phones.We are flying 2 Snapdragon HDKs onboard the International Space Station (ISS) where they are... |
Jul 19, 2021
Mason, James; Chien, Steve, 2021, "Automated Scheduling of Federated Observations in the NOS Testbed", https://hdl.handle.net/2014/55087, International Workshop for Planning and Scheduling for Space, Pasadena, California, July 19-23, 2021, JPL Open Repository
The advancement of remote and in-situ sensing technology, combined with the emergence of New Space ventures, is producing a variety of new measurements for Earth Science phenomena. New observation techniques must combine and leverage these federated systems. In developing this ne... |
