2000 IEEE Aerospace Conference. Proceedings (Cat. No.00TH8484)

25-25 March 2000

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  • 2000 IEEE Aerospace Conference [front matter]

    Publication Year: 2000, Page(s):0_1 - xxviii
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  • Issues in control of space membrane/inflatable structures

    Publication Year: 2000, Page(s):411 - 414 vol.7
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (328 KB)

    Membrane/inflatable structures for space applications hold great promise. Their reduced launch mass and stowed volume suggests the possibility of large aperture antenna and reflectors for increased resolution, and solar sails and shades that can span great distances. However, their extreme flexibility provides for significant challenge with regard to the control of their deployment and shape. This... View full abstract»

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  • The Big Occulting Steerable Satellite (BOSS)

    Publication Year: 2000, Page(s):403 - 410 vol.7
    Cited by:  Papers (2)
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    The Big Occulting Steerable Satellite (BOSS) is a concept for a mission to improve the high contrast and high resolution capabilities of the Next Generation Space Telescope (NGST). The objective of BOSS is to facilitate the separation of dim objects (such as planets) from nearby bright objects (such as stars) by occulting the bright source, and to improve the resolution of closely spaced objects o... View full abstract»

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  • Innovative balloon buoyancy techniques for atmospheric exploration

    Publication Year: 2000, Page(s):397 - 402 vol.7
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (868 KB)

    Until quite recently, the only practical means to control balloon buoyancy, and thus altitude, required consuming large amounts of fuel or the limited venting of helium balloons and/or dropping of ballast. Recently at JPL, novel, long-life, balloon buoyancy techniques have been developed that for the first time allow balloons to float in the primarily hydrogen atmospheres of Jupiter, Saturn, Uranu... View full abstract»

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  • Interstellar Probe mission/system concept

    Publication Year: 2000, Page(s):385 - 396 vol.7
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1248 KB)

    NASA's Interstellar Program was begun in the Spring of 1999 after a year of advanced mission and program planning activities, reported previously in a paper delivered at the 1999 IEEE Aerospace Conference. Summarized here is the progress towards defining the first mission in the Interstellar Program: Interstellar Probe (ISP). This mission will be the first to probe the interstellar medium with a c... View full abstract»

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  • A reconfigurable multifunctional architecture approach for next-generation nanosatellite design

    Publication Year: 2000, Page(s):185 - 193 vol.7
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1008 KB)

    This paper proposes a new nanosatellite design paradigm called Reconfigurable Multifunctional Architecture (RMA). The RMA concept enables dramatic cost savings and economies of scale, and is compatible with numerous nanosatellite missions. In the RMA concept, functional modules are used to implement higher-level mission-specific functions (e.g., propulsion). Subsystem functions are distributed acr... View full abstract»

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  • Anchoring technology for in situ exploration of small bodies

    Publication Year: 2000, Page(s):507 - 518 vol.7
    Cited by:  Papers (9)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1256 KB)

    Comets, asteroids and other small bodies found in the solar system do not possess enough gravity to ensure spacecraft contact forces sufficient to allow many types of in situ science, such as core or surface sampling. Some method of providing sufficient contact force must be used for successful in situ exploration. A range of possible anchoring technologies for use with small bodies is discussed a... View full abstract»

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  • Venus sample return. A hot topic

    Publication Year: 2000, Page(s):473 - 484 vol.7
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1488 KB)

    Within the Solar System, Venus presents a set of unique challenges to obtaining samples and returning them to Earth. High temperatures, a thick corrosive atmosphere and poorly characterized terrain are some obvious examples. Our only knowledge of the surface and atmosphere is from Radar images and the data from Soviet probes. A point design now exists for a single launch mission to return Venusian... View full abstract»

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  • Mars network: a Mars orbiting communications and navigation satellite constellation

    Publication Year: 2000, Page(s):75 - 88 vol.7
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1008 KB)

    Mars has become the focus of an unprecedented series of missions spanning many years, involving numerous nations and evolving from robotic to human exploration. Elements will be dispersed widely in longitude and latitude over the surface of Mars. Some surface elements like rovers, balloons and airplanes will be mobile. Other elements like sample canisters will orbit Mars. Finally manned sites will... View full abstract»

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  • Venus Surface Sample Return

    Publication Year: 2000, Page(s):377 - 384 vol.7
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (572 KB)

    In cooperation with NASA's Solar System Exploration Subcommittee (SSES) the Jet Propulsion Laboratory (JPL) is conducting a series of studies to assess the feasibility of planetary science missions proposed for launch in the 2006-2010 time frame and to prioritize technology development steps that will enable these missions. Until recently the return of sample material from the surface of Venus was... View full abstract»

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  • The ALFA constellation communications and navigation support system

    Publication Year: 2000, Page(s):177 - 184 vol.7
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (528 KB)

    The proposed ALFA space-based imaging interferometer mission consists of 16 identical small satellites with dipole antennas and low frequency radio receivers, distributed in a spherical array 100 km in diameter, and placed in a nearly circular distant retrograde orbit about the Earth, with a typical range of 106 km. Each satellite communicates directly with a small (11 m), low-cost ante... View full abstract»

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  • Aerobots in planetary exploration

    Publication Year: 2000, Page(s):547 - 555 vol.7
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (788 KB)

    Robotic balloons (aerobots) may significantly change the future of in situ planetary exploration. On Mars, the aerobots can fill the gap in resolution/coverage between the orbiters and rovers. Powered aerobots (airships) can make controlled global flights for high-resolution radar, visible, infrared, thermal, magnetic, and neutron mapping; they can be used for deployment of network of surface stat... View full abstract»

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  • Mars Volatiles and Climate Surveyor (MVACS)

    Publication Year: 2000, Page(s):501 - 504 vol.7
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (364 KB)

    The Mars Volatiles and Climate Surveyor (MVACS) is an integrated payload on the Mars Polar Lander (MPL) launched on January 3, 1999. The MPL will land on Mars on December 3, 1999. MVACS consists of Surface Stereo Imager (SSI), Robotic Arm (RA) including Robotic Arm Camera (RAC), Meteorology Package (MET) and Thermal and Evolved Gas Analyzer (TEGA). The major science objective of MVACS is to study ... View full abstract»

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  • Trade study of penetration and sampling devices for possible use on the Mars Sample Return missions

    Publication Year: 2000, Page(s):573 - 582 vol.7
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (908 KB)

    This paper reviews the work completed on the compilation of a database containing viable penetrating and sampling devices, the performance of a system level trade study comparing selected devices to a set of prescribed parameters and the employment of a metric for the evaluation and ranking of the traded penetration and sampling devices, with respect to possible usage on the 03 and 05 Mars Sample ... View full abstract»

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  • Sensor Web for in situ exploration of gaseous biosignatures

    Publication Year: 2000, Page(s):465 - 472 vol.7
    Cited by:  Papers (17)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1004 KB)

    A Sensor Web is a system of intra-communicating spatially distributed sensor pods that can be deployed to monitor and explore new environments. By its very nature, the Sensor Web provides spatio-temporal data in a form consistent with that needed for environment modeling and represents a new paradigm for in situ monitoring and exploration. For example, a wireless web of scattered sensor pods on th... View full abstract»

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  • A preliminary investigation of decentralized control far satellite formations

    Publication Year: 2000, Page(s):63 - 74 vol.7
    Cited by:  Papers (14)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (656 KB)

    A distributed satellite formation consisting of n nodes interconnected via a communications network could be controlled using a decentralized controller framework that operates in parallel over the network. For such problems, a solution that minimizes data transmission requirements, in the context of linear-quadratic control theory, was given previously by Speyer. An investigation of the feasibili... View full abstract»

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  • Mars Sample Return spacecraft systems architecture

    Publication Year: 2000, Page(s):357 - 375 vol.7
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1808 KB)

    The Mars Sample Return mission plans to collect sets of samples from two different sites on Mars and return them to Earth in 2008. The mission consists of 15 different vehicles and spacecraft plus two launch vehicles, with elements being provided by the U.S., France, and Italy. These vehicles include two U.S. provided Landers, each with a sample collection Rover, Mars Ascent Vehicle, and an Orbiti... View full abstract»

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  • Innovative methods for placing small payloads in space

    Publication Year: 2000, Page(s):167 - 175 vol.7
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (944 KB)

    There has been a significant increase in demand for testing, qualification and evaluation of satellite components in space by means of secondary rides on primary payloads and launch vehicle structures. A critical category of secondary payload developers exists that have needs for space launch services: the new/innovative developers of space components that do not have the knowledge, resources, or ... View full abstract»

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  • Structure and Evolution of the Universe-21st century missions

    Publication Year: 2000, Page(s):307 - 321 vol.7
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1288 KB)

    The Structure and Evolution of the Universe (SEU) science theme at NASA centers on four cosmological quests: (i) to comprehend how matter in the Universe evolved from formlessness into the complexity of galaxies and galaxy clusters; (ii) to probe the ultimate limits of physics by searching for new behaviors of space, time, and matter close to black holes; (iii) to understand how matter behaves und... View full abstract»

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  • Attached inflatable ballute for spacecraft deceleration

    Publication Year: 2000, Page(s):421 - 427 vol.7
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (552 KB)

    An innovative, lightweight method, using an inflatable ballute, to increase aerobraking drag and potentially reduce the size of spacecraft (S/C) payloads, is presented. Computational fluid dynamics (CFD) calculations (using the entry environment and trajectory for a Mars 03 entry vehicle) were performed for a generic torroidal-shaped ballute, attached to a baseline S/C configuration. Results from ... View full abstract»

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  • Distributed computing on Emerald: a modular approach for robust distributed space systems

    Publication Year: 2000, Page(s):211 - 222 vol.7
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (920 KB)

    A modular, distributed bus architecture potentially offers significant advantages throughout a satellite's lifecycle. Specifically this architecture enables:- During ground integration: incremental integration of subsystems even if crucial parts, such as the CPU, are delayed; using the Internet for “virtual integration” between remote locations. On-orbit: sharing resources within a sat... View full abstract»

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  • Extreme electronics for in situ robotic/sensing systems

    Publication Year: 2000, Page(s):539 - 546 vol.7
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (668 KB)

    NASA's desire to study and characterize the solar system and small bodies like comets and asteroids will be done by in situ robotic systems in the near term. Work has already begun on the design of Mars and Europa mole penetrators, ultrasonic coring systems for Venus, and corers for comet nucleus sampling. Along with these in situ sampling systems come miniature science instruments that allow samp... View full abstract»

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  • Optimizing science return from Titan aerial explorers

    Publication Year: 2000, Page(s):493 - 499 vol.7
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    This paper explores the scientific challenges of post-Cassini exploration of Titan, Saturn's giant, hazy moon. In particular, the scientific objectives are addressed, and the vehicle types that might be most appropriate are considered, paying particular attention to the energy required for mobility, for acquiring data, and downlinking it to Earth, and to the rate at which science data can be acqui... View full abstract»

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  • Multi-spacecraft trajectory optimization and control using genetic algorithm techniques

    Publication Year: 2000, Page(s):99 - 108 vol.7
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (876 KB)

    This paper presents an approach for multi-spacecraft trajectory planning, optimization and control. Maneuver planning as a global optimization problem is solved using genetic algorithms (GA). Methods were devised to reduce the dimensionality of the decision space, yet retain adequate generality of maneuver possibilities. A compact formulation based on thruster switching-times was used for generic ... View full abstract»

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  • Low-cost robotics for space exploration: a probabilistic trade space for biomorphic exploration devices

    Publication Year: 2000, Page(s):567 - 571 vol.7
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (424 KB)

    Numerous in-situ sampling missions are planned to a variety of planets, moons, asteroids, and comets. Among the variety of new technologies needed for such exploration are small, highly mobile, autonomous and relatively inexpensive platforms known as biomorphic explorers. These miniaturized robotic devices will be particularly valuable for study and exploration of the surfaces of planets, moons, a... View full abstract»

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