1 to 10 of 815 Results
Mar 7, 2020
Hart, William; Oh, David; Polanskey, Carol; Seal, David; Snyder, Steve; Stevens, Sarah; Trofimov, Denis, 2020, "2020 IEEE Paper on Psyche margin management, Draft", https://hdl.handle.net/2014/52371, 2020 IEEE Aerospace Conference, Big Sky, Montana, March 7-14, 2020, JPL Open Repository
In January 2017, the mission concept Psyche: Journey to a Metal World was one of two concepts selected by NASA for implementation as part of the 14th Discovery mission competition. Over the course of the past year, the Psyche team has actively worked to refine and mature the tech... |
Aug 1, 2021
Levis, Aviad; Davis, Anthony B.; Loveridge, Jesse R.; Schechner, Yoav Y., 2021, "3D Cloud Tomography and Droplet Size Retrieval from Multi-Angle Polarimetric Imaging of Scattered Sunlight from Above", https://hdl.handle.net/2014/55245, SPIE Optical Engineering & Applications Symposium 2021, San Diego, California, August 1 - July 5, 2021, JPL Open Repository
Tomography aims to recover a three-dimensional (3D) density map of a medium or an object. In medical imaging,it is extensively used for diagnostics via X-ray computed tomography (CT). We define and derive a tomographyof cloud droplet distributions via passive remote sensing. We u... |
Oct 19, 2020
Aucone, Emanuele; McGarey, Patrick, 2020, "3d Kinematic Passive-steering Control with Roll Compensation for Rover Trajectory Following Over Rough Terrain", https://hdl.handle.net/2014/53294, VIRTUAL The International Symposium on Artificial Intelligence, Robotics and Automation in Space (i-SAIRAS) 2020, Pasadena, California, October 19-23, 2020, JPL Open Repository
Some of the most appealing areas for future planetary surface exploration lie in rough, uneven terrains, such as craters and cold traps, which are currently inaccessible by state-of-the-art robotic systems [1]. To provide modularity for access and in-situ sampling within such ext... |
Sep 27, 2021
Jarvis, Benjamin; Choi, Gary; Hockman, Benjamin; Morrell, Benjamin; Bandopadhyay, Saptarshi; Lubey, Daniel; Villa, Jacopo; Bhaskaran, Shyam; Bayard, David; Nesnas, Issa, 2021, "3D Shape Reconstruction of Small Bodies from Sparse Features", https://hdl.handle.net/2014/55934, International Conference on Intelligent Robots and Systems (IROS), Prague, Czech Republic, September 27 - October 1, 2021, JPL Open Repository
The autonomous approach of spacecraft to a small body (comet or asteroid) relies on using all available information at each phase of the approach. This paper presents new algorithms for global shape reconstructions from sparse tracked surface points. These methods leverage estima... |
Mar 21, 2022
Selva, Daniel; Allen, George; Gao, Huilin; Gorr, Ben; Jaramillo, Alan Aguilar; Viros Martin, Antoni; Sun, Yizhou; Mehta, Ankur; Nag, Sreeja; Ravindra, Vinay; David, Cedric H., 2022, "3D-CHESS: Decentralized, Distributed, Dynamic, and Context-aware Heterogeneous Sensor Systems", https://hdl.handle.net/2014/56120, International Symposium on Stabilization, Safety, and Security of Distributed Systems., Stanford, California, March 21, 2022 - December 23, 2021, JPL Open Repository
This paper describes the objectives and current status of the 3D-CHESS project which aims to demonstrate a new Earth observing strategy based on a context-aware Earth observing sensor web. This sensor web consists of a set of nodes with a knowledge base, heterogeneous sensors, ed... |
Dec 4, 2021
van Berkel, S.; Khanal, Subash; Rahiminejad, Sofia; Jung-Kubiak, Cecile; Maestrini, Alain; Chattopadhyay, Goutam, 2021, "A 1-D Submm-wave Leaky-Wave Phased Array using MEMS Phase Shifters", https://hdl.handle.net/2014/54917, 2021 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, Marina Bay Sands, Singapore, December 4-10, 2021, JPL Open Repository
Beam-scanning of submillimeter-wave spectrometers and radiometers have traditionally been implemented using mechanical scanning mechanisms due to the absence of lowloss electronic phase shifters. Recently developed waveguideintegrated MEMS phase shifters are paving the way to rea... |
May 21, 2018
Karp, A.C.; Jens, E.T.; Rabinovitch, J.; Nakazono, B., 2018, "A 6U Hybrid Propulsion Module for CUBESATS", https://hdl.handle.net/2014/48137, Joint Army-NASA-Air Force (JANNAF) Propulsion Meeting, Long Beach, California, May 21 - 24, 2018, JPL Open Repository
A 6U hybrid propulsion module is presented. It is designed to be used as a stage for a 6U CubeSat with a combined wet mass up to 25 kg. Hybrid rocket propulsion is utilized because it is responsive, high performance, capable of multiple burns and safe/non-toxic. Hybrid rockets em... |
Sep 30, 2019
Barchowsky, Ansel; Amirahmadi, Ahmadreza; Stell, Chris; Merida, Elvis; Bolotin, Gary; Ulloa-Severino, Antonio; Carr, Greg, 2019, "A class of GaN-based, radiation-hardened power electronics for Jovian environments", https://hdl.handle.net/2014/51877, European Space Power Conference ESPC 2019, Juan Les Pins, France, September 30 - October 4, 2019, JPL Open Repository
No abstract provided |
Nov 15, 2019
Shisko, Robert, 2019, "A comparison of previously published papers on the economics of lunar In Situ Resource Utliization (ISRU)", https://hdl.handle.net/2014/52011, Universities Space Research Association (USRA), Columbia, Maryland, November 15-19, 2019, JPL Open Repository
No abstract provided |
Oct 19, 2020
McGarey, Patrick; Bandyopadhyay, Saptarshi; Rafizadeh, Ramin; Goel, Ashish; Arya, Manan; Nesnas, Issa; Lazio, Joe; Goldsmith, Paul; Stoica, Adrian; Quadrelli, Marco; Hallinan, Greg, 2020, "A Concept for the Deployment of a Large Lunar Crater Radio Telescope Using Teams of Tethered Robots", https://hdl.handle.net/2014/53248, VIRTUAL The International Symposium on Artificial Intelligence, Robotics and Automation in Space (i-SAIRAS) 2020, Pasadena, California, October 19-23, 2020, JPL Open Repository
Kilometer-scale craters on the far side of the Moon have unique potential as future locations for large radio telescopes, which can observe the universe at wavelengths and frequencies (> 10 m, < 30 MHz) not possible with conventional Earth or orbital-based approaches. Distinct ad... |
