1 to 10 of 815 Results
Oct 3, 2022
Sheldon, Douglas; Daniel, Andrew; Vartanian, Sergeh; Riley, Robert; Allen, Greg, 2022, "Radiation Effects Characterization and System Architecture Options for the 7nm Snapdragon SA8155P Automotive Grade System on Chip (SoC)", https://hdl.handle.net/2014/56137, RADECS 2022, Venice, Italy, October 3-7, 2022, JPL Open Repository
The SA8155P SoC is a complex heterogeneous computational platform with CPUs, GPU, DSPs and NPU. The SA8155P is a 7 TOPS/7 Watts capable AI/ML platform and as such represents a game changing breakthrough in terms computational power for space applications. We characterize the TID... |
Sep 12, 2022
Ting, David Z.; Keo, Sam A.; Khoshakhlagh, Arezou; Soibel, Alexander; Pepper, Brian J; Hill, Cory J.; Fisher, Anita M.; Rafol, Sir B.; Maruyama, Yuki; Gunapala, Sarath D.; Pagano, Thomas S., 2022, "InAs/InAsSb Type-II Stained Layer Superlattice Infrared Detectors and Focal Plane Arrays", https://hdl.handle.net/2014/56138, IEEE Research and Applications of Photonics in Defense (RAPID 2022) Conference, Miramar Beach, Florida, September 12-14, 2022, JPL Open Repository
We explore long wavelength InAs/InAsSb superlattice complementary barrier infrared detectors that contain p-type absorber layers for quantum efficiency enhancement. We also discuss type-II superlattice infrared detector technology for NASA Earth Science applications, including LW... |
Aug 7, 2022
Blanchard, Jared T.; Lo, Martin W.; Close, Sigrid; Anderson, Brian D.; Close, Sigrid, 2022, "Model Predictive Control in the Three-body Problem Using Invariant Funnels As Terminal Sets", https://hdl.handle.net/2014/56152, 2022 AAS/AIAA Astrodynamics Specialist Conference, Charlotte, North Carolina, August 7-10, 2022, JPL Open Repository
This paper describes a method for augmenting Model Predictive Control techniques using invariant funnels computed in the Circular Restricted Three-Body Problem. We use ellipsoids that roughly approximate the boundary of the invariant funnel as convex terminal sets for a short loo... |
Jul 17, 2022
Gao, Ruoxing; Jeong, Jongwoo; Gu, Weihui; Tsang, Leung; Colliander, Andreas; Yueh, Simon, 2022, "Full-Wave Simulations of Scattering by Corn Fields at L-Band", https://hdl.handle.net/2014/56130, IEEE IGARSS 2022, Kuala Lumpur, Malaysia, July 17-22, 2022, JPL Open Repository
In this paper, the Numerical Maxwell Model of 3D (NMM3D) full-wave simulation is performed over a corn field using a hybrid method to study the vegetation effect on the microwave. The commercial software of FEKO is used to extract T-matrix of single corn in the first step. Then t... |
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
Lal, Preet; Singh, Gurjeet; Das, Narendra N.; Entekhabi, Dara; Pandey, Dharmendra Kumar; Lohman, Rowena; Colliander, Andreas; Vanama, Venkat, 2022, "A Disaggregation Algorithm for the High Resolution Soil Moisture Product from the Upcoming NISAR Mission", https://hdl.handle.net/2014/56129, IEEE IGARSS 2022, Kuala Lumpur, Malaysia, July 17-22, 2022, JPL Open Repository
The NASA-ISRO Synthetic Aperture Radar (NISAR) is in the developmental stage and is planned to launch in Jan 2024 with two different microwave frequency bands L-band (~1.25 GHz) and S-band (~3.20 GHz), respectively, to provide fine-scale observations at resolutions of 5 to 10 met... |
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... |
Jul 17, 2022
Colliander, Andreas; Cosh, Michael H.; Berg, Aaron; Misra, Sidharth; Thomas, Jaison; Bourgeau-Chavez, Laura; Kelly, Vicky; Kraatz, Simon; Siqueira, Paul; Roy, Alexandre; Helgason, Warren; Magagi, Ramata; Lakhankar, Tarendra; Ogut, Mehmet; Chaubell, Julian; Dunbar, Scott; Famiglietti, Jay; Konings, Alexandra; Kurum, Mehmet; Entekhabi, Dara; Yueh, Simon H., 2022, "Development of SMAP Retrievals for Forested Regions: SMAPVEX19-22 and SMAPVEX22-Boreal", https://hdl.handle.net/2014/56127, IEEE IGARSS 2022, Kuala Lumpur, Malaysia, July 17-22, 2022, JPL Open Repository
The retrieval of soil moisture (SM) under forest canopy has long been an important goal for low frequency remote sensing. The NASA Soil Moisture Active Passive (SMAP) mission is engaged at three separate experiment sites to improve its SM retrieval algorithm in forested areas. Tw... |
Jul 17, 2022
Huang, Thomas; Chung, Nga; Dunn, Alex; Hovland, Erik; Kang, Jason; Loubrieu, Thomas; Neu, Jessica; Roberts, Joe; Hasheminassab, Sina; Marlis, Kevin; Bindle, Liam; Estrada, Lucas; Jacob, Daniel; Martin, Randall; Holm, Jeanne; Pouhomayoun, Mohammad; Henze, Daven; Nawaz, Muhammad Omar; Yang, Chaowei; Liu, Qian, 2022, "An Advanced Open-Source Platform for Air Quality Analysis, Visualization, and Prediction", https://hdl.handle.net/2014/56168, IEEE IGARSS 2022, Kuala Lumpur, Malaysia, July 17-22, 2022, JPL Open Repository
Ambient air pollution is the largest environmental health risk factor, leading to several million premature deaths globally per year. The challenge of combating poor air quality is exacerbated by growing urban populations, changing emissions, and a warming climate. While there ha... |
Jun 25, 2022
Fleischer, Samuel R.; Hihn, Jairus M.; Johnson, James K., 2022, "Advanced Statistical Methods in Spacecraft Flight Software Cost Estimation: Bayesian Regression and Nonlinear Principal Components Analysis to Support System Engineering in the Early Project Lifecycle", https://hdl.handle.net/2014/56171, INCOSE 32nd Annual International Symposium 2022, Detroit, Michigan, June 25-30, 2022, JPL Open Repository
This paper provides an overview of the new features and model updates in the upcoming release of the NASA Analogy Software Cost Tool (ASCoT). ASCoT, hosted within the Online NASA Space Estimation Tools (ONSET) on the One NASA Cost Engineering (ONCE) Database, is a web-based tool... |
