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31 to 40 of 6,770 Results
Designing the Ka-Band System Architecture for Science Data Return on the SPHEREx Mission
Mar 2, 2024
Eric Rice, 2024, "Designing the Ka-Band System Architecture for Science Data Return on the SPHEREx Mission", https://doi.org/10.48577/jpl.BW19VP, IEEE Aerospace Conference Big Sky, Montana, JPL Open Repository
The Spectro-Photometer for the History of the Universe, Epoch of Reionization and Ices Explorer (SPHEREx) mission, a part of the NASA Astrophysics Medium Explorer (MIDEX) program, will produce the first all-sky near infrared spectral survey of the universe, collecting images ever...
Ground-Assisted Position Navigation and Timing (PNT) for Moon and Mars
Mar 2, 2024
William Jun, 2024, "Ground-Assisted Position Navigation and Timing (PNT) for Moon and Mars", https://doi.org/10.48577/jpl.O77R17, IEEE Aerospace Conference Big Sky, Montana, JPL Open Repository
The recent exploration initiatives for robotic and human missions to the Moon and Mars requires long-term communications and navigation infrastructures that provide accurate and autonomous PNT services for orbiting and surface users. NASA launched the Communication Relay and Navi...
All Solid-State Transmitter (ASTRAM) for Next-Generation Ground-Based Planetary Radar
Mar 2, 2024
Lin Yi, 2024, "All Solid-State Transmitter (ASTRAM) for Next-Generation Ground-Based Planetary Radar", https://doi.org/10.48577/jpl.NZDBJV, IEEE Aerospace Conference Big Sky, Montana, JPL Open Repository
This paper presents the development of a newtype of transmitter for next-generation ground-basedplanetary radar. The transmitter is based on mature,reliable solid-state technology, and provides analternative to traditional amplifier tube-basedtransmitter systems. The technology d...
In-situ Resource Utilization with Icy Moons’ Plumes
Mar 2, 2024
Lin Yi, 2024, "In-situ Resource Utilization with Icy Moons’ Plumes", https://doi.org/10.48577/jpl.M0AJ9R, IEEE Aerospace Conference Big Sky, Montana, JPL Open Repository
No abstract available.
Enhancing Rover Mobility Monitoring: Autoencoder-driven Anomaly Detection for the Mars Science Laboratory
Mar 2, 2024
Mielad Sabzehi, 2024, "Enhancing Rover Mobility Monitoring: Autoencoder-driven Anomaly Detection for the Mars Science Laboratory", https://doi.org/10.48577/jpl.M6MI5N, IEEE Aerospace Conference Big Sky, Montana, JPL Open Repository
Over eleven years into its mission, the Mars ScienceLaboratory remains vital to NASA’s Mars exploration. Safe-guarding the rover’s long-term functionality is a top mission pri-ority. In this study, we introduce and test undercomplete autoen-coder models for detecting drive anomal...
The Sun Radio Interferometer Space Experiment (SunRISE)
Mar 2, 2024
Joseph Lazio, 2024, "The Sun Radio Interferometer Space Experiment (SunRISE)", https://doi.org/10.48577/jpl.YGT5WL, IEEE Aerospace Conference Big Sky, Montana, JPL Open Repository
The Sun Radio Interferometer Space Experiment (SunRISE) will provide an entirely new view on particle acceleration and transport in the inner heliosphere by creating the first dedicated low radio frequency interferometer in space to localize heliospheric radio emissions. By imagi...
Two-way Ranging using OFDM Waveform with Application to Lunar Surface Navigation
Mar 2, 2024
Dennis Ogbe, 2024, "Two-way Ranging using OFDM Waveform with Application to Lunar Surface Navigation", https://doi.org/10.48577/jpl.4JCSRU, IEEE Aerospace Conference Big Sky, Montana, JPL Open Repository
We present a ranging system which measures the distance between two radio nodes by estimating the time of flight (ToF) of a series of short radio frequencybursts modulated using an orthogonal frequency division multiplexing (OFDM) waveform. ToF is estimated by periodically exchan...
Design and Development of SWIM – Miniature, Untethered Underwater Robots for Exploring Ice-Ocean Interfaces
Mar 2, 2024
Ethan Schaler, 2024, "Design and Development of SWIM – Miniature, Untethered Underwater Robots for Exploring Ice-Ocean Interfaces", https://doi.org/10.48577/jpl.BSHOH0, IEEE Aerospace Conference Big Sky, Montana, JPL Open Repository
Here we discuss the design, development, and systemengineering of the SWIM (Sensing With Independent Microswimmwers) system, which consists of decimeter-scale, swimming micro-robots (micro-swimmers) equipped with ocean composition sensors, propelled by miniature actuators, and wi...
Positioning, Navigation, and Timing for Lunar Descent and Landing with Joint Doppler and Ranging
Mar 2, 2024
William Jun, 2024, "Positioning, Navigation, and Timing for Lunar Descent and Landing with Joint Doppler and Ranging", https://doi.org/10.48577/jpl.UR7KFF, IEEE Aerospace Conference Big Sky, Montana, JPL Open Repository
Lunar descent and landing requires accurate position, velocity, and timing (PVT) knowledge in real-time. This paper introduces the use of Joint Doppler and Ranging (JDR) fused with additional sensors to estimate PVT for a lunar lander. JDR is a radiometric navigation method that...
Unleashing Robust, Explainable Autonomy in Icy Moon Missions: Testbed Demonstrations
Mar 2, 2024
Martin Feather, 2024, "Unleashing Robust, Explainable Autonomy in Icy Moon Missions: Testbed Demonstrations", https://doi.org/10.48577/jpl.ZD4H3L, IEEE Aerospace Conference Big Sky, Montana, JPL Open Repository
Our Robust, Explainable Autonomy for Scientific Icy Moon Operations (REASIMO) effort contributes to NASA’s COLDTech program, which explores science platform technologies for icy worlds such as Europa and Enceladus. Icy world missions pose significant operational challenges – long...
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