A5047596711- Spacecraft Design and Technology
- Planetary Science and Exploration
- Satellite Communication Systems
- Astro and Planetary Science
- Robotic Path Planning Algorithms
- Spacecraft and Cryogenic Technologies
- Spacecraft Dynamics and Control
- Space exploration and regulation
- Space Science and Extraterrestrial Life
- Distributed Control Multi-Agent Systems
- Guidance and Control Systems
- Space Exploration and Technology
- Space Satellite Systems and Control
- Underwater Vehicles and Communication Systems
- Robotics and Sensor-Based Localization
- Aerospace Engineering and Energy Systems
- Aerospace Engineering and Control Systems
- Inertial Sensor and Navigation
- Modular Robots and Swarm Intelligence
- Stellar, planetary, and galactic studies
- Radio Astronomy Observations and Technology
- Geophysics and Gravity Measurements
- Cryospheric studies and observations
- Real-Time Systems Scheduling
- Electrohydrodynamics and Fluid Dynamics
Jet Propulsion Laboratory
2012-2025
California Institute of Technology
2012-2021
Arizona State University
2017
University of Michigan
2007-2013
Japan Aerospace Exploration Agency
2010-2011
Space Engineering University
2009
This paper considers energy-optimal path planning and perpetual endurance for unmanned aerial vehicles equipped with solar cells on the wings, which collect energy used to drive a propeller.Perpetual is ability more than lost during day.This two vehicle missions: 1) travel between given positions within an allowed duration while maximizing final value of 2) loiter perpetually from position, requires endurance.For first mission, subsequent problem features coupling aircraft kinematics...
Abstract Internal structures of the Moon are key to understanding origin and evolution Earth–Moon system other planets. The Apollo Passive Seismic Experiment detected thousands lunar seismic events vastly improved our Moon’s interior. However, some critical questions like state composition core remain unsolved largely due sparsity stations strong scattering waves in top layer Moon. In this study, we propose concept a fiber network on discuss its potential overcoming challenges imaging deep...
The INSPIRE project would demonstrate the revolutionary capability of deep space CubeSats by placing two nanospacecraft in Earth-escape orbit.Prior to any inclusion on larger planetary missions, must that they can operate, communicate, and be navigated far from Earth -these are primary objectives INSPIRE.Spacecraft components, such as a JPL X-band radio robust watchdog system, provide basis for future high-capability, lower-cost-risk missions beyond Earth.These components should enable...
Abstract The stress field perturbation caused by magmatic intrusions within volcanic systems induces strain in the surrounding region. This effect results opening and closing of microcracks vicinity intrusion, which can affect regional seismic velocities. In late November 2023, we deployed a distributed acoustic sensing interrogator to convert an existing 100‐km telecommunication fiber‐optic cable along coast Iceland's Reykjanes peninsula into dense array, has run continuously. Measuring...
[Abstract] Motivated by long-endurance requirements in surveillance, reconnaissance and exploration, this paper considers level flight path planning for unmanned aerial vehicles (UAVs) equipped with solar cells on the upper surface of wings. These collect energy that is stored a battery used to drive propeller. The mission UAV travel from given initial position final position, less than an allowed duration, using battery. subsequent problem energy-optimal features interaction between...
Motivated by cooperative exploration missions, this paper considers constant velocity, level flight path planning for Unmanned Air Vehicles (UAVs) equipped with range limited, omni-directional sensors. These active energy-based sensors collect information about objects of interest at rates that depend on the to according Shannon's channel capacity equation, where signal-to-noise ratio is governed radar equation. The mission UAVs travel through a given area and specified amount each object...
One of Saturn's largest moons, Enceladus, possesses a vast extraterrestrial ocean (i.e., exo-ocean) that is increasingly becoming the hotspot future research initiatives dedicated to exploration putative life. Here, new bio-exploration concept design for Enceladus' exo-ocean proposed, focusing on potential presence organisms across wide range sizes from uni- multicellular and animal-like), according state-of-the-art sensor robotic platform technologies used in terrestrial deep-sea research....
Modern space systems necessarily have a tight coupling between onboard cyber (processing, communication) and physical (sensing, actuation) elements to survive the harsh extraterrestrial environment successfully complete ambitious missions. This article first summarizes exploration missions existing platforms that to-date been developed by ad hoc, one-of-a-kind cyber-physical integration efforts. The primary goal of this paper is present series (CPS) challenges that, if addressed in emerging...
Selected in 2019 as a NASA SIMPLEx mission, Lunar Trailblazer is implementation for flight system delivery at the end of 2022. The mission's goal to understand form, abundance, and distribution water on Moon lunar cycle. also collects data candidate landing sites inform planning future human robotic exploration evaluate potential situ resource utilization. Trailblazer's two science instruments, High-resolution Volatiles Minerals Mapper (HVM3) Thermal (LTM) provide simultaneous...
This paper introduces models and tools to assess the communication capacity for highly dynamic geographically diverse ground stations that loosely collaborate provide increased satellite connectivity. Communication is total amount of information exchanged between a network satellites over finite time period. We outline major constraints on which influence transmission capabilities from satellite, station, perspectives. Orbit are combined with engineering analysis software compare existing...
CubeSats are small spacecraft based on a 10cm by (1U) cube standard that have historically only been operated in Earth orbit. Mars Cube One (MarCO) is the first CubeSat mission developed for interplanetary operation. MarCO technology demonstration comprised of two identical, solar powered 6U satellites with several key goals, including providing bent pipe telecom relay to NASA's InSight (Interior Exploration using Seismic Investigations, Geodesy and Heat Transport) during its Entry, Descent,...
FARSIDE (Farside Array for Radio Science Investigations of the Dark ages and Exoplanets) is a mission concept to place low radio frequency interferometric array on farside Moon.This was studied as part Decadal Survey Astronomy Astrophysics 2020 (Astro2020), in Astro2020-equivalent Planetary Mission Concept Studies program.The NASA-funded design study focused instrument, deployment rover, lander base station.The result an architecture broadly consistent with requirements Probe-class division...
Exploration always occurs in the presence of uncertainty. In this paper, we consider path planning for autonomous vehicles equipped with range-based sensors and traveling an uncertain area. The mission is to explore a set objects interest while reducing uncertainty object position, visibility state. A connection shown between Kalman filter (used reduce uncertainty) so-called Shannon model exploration through use covariance. This exploited estimate states travel interest. bound on covariance...