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Hooke, Adrian J.

Publications and source records attributed to Hooke, Adrian J..

At least 19 records
All sourcesNASA NTRSDOE OSTI
NASA NTRS2008

Evolutionary Paths to Internationally-Standardized Space Internetworking

The space community is now poised at the start of an exciting new era of space exploration, where many different organization will be launching spacecraft to investigate nearby bodies, such as the Moon and Mars. International fleets of spacecraft are thus likely to begin to fly and interoperability will often become a mission-enabling technology. These fleets will require a mix of powerful data communications capabilities to be available, ranging from conventional point-to-point architectures to new configurations supporting internetworked operations. This paper reviews the various CCSDS capabilities to support fully-standardized in-space internetworking, and outlines a strategy for smoothly evolving into the new era with minimum impact on the highly successful installed base of CCSDS-compatible systems, which are now widely deployed across the international space community.

Space Internet↗
NASA NTRS2007

Challenges of Space Mission Interoperability

This viewgraph presentation reviews some of the international challenges to space mission interoperability. Interoperability is the technical capability of two or more systems or components to exchange information and to use the information that has been exchanged. One of the challenges that is addressed is the problem of spectrum bandwidth, and interference. The key to interoperability is the standardization of space communications services and protocols. Various levels of international cross support are reviewed: harmony, cooperation cross support and confederation cross support. The various international bodies charged with implementing cross support are reviewed. The goal of the Interagency Operations Advisory Group (IOAG) is to achieve plug-and-play operations where all that is required is for each of the systems to use an agreed communications medium, after which the systems configure each other for the purpose of exchanging information and subsequently effect such exchange automatically.

interoperability↗
NASA NTRS2006

The NASA Space Communications Data Networking Architecture

The NASA Space Communications Architecture Working Group (SCAWG) has recently been developing an integrated agency-wide space communications architecture in order to provide the necessary communication and navigation capabilities to support NASA's new Exploration and Science Programs. A critical element of the space communications architecture is the end-to-end Data Networking Architecture, which must provide a wide range of services required for missions ranging from planetary rovers to human spaceflight, and from sub-orbital space to deep space. Requirements for a higher degree of user autonomy and interoperability between a variety of elements must be accommodated within an architecture that necessarily features minimum operational complexity. The architecture must also be scalable and evolvable to meet mission needs for the next 25 years. This paper will describe the recommended NASA Data Networking Architecture, present some of the rationale for the recommendations, and will illustrate an application of the architecture to example NASA missions.

Israel, David J.↗
NASA NTRS2005

Overview of International Space Standards

This presentation reviews space standards as put forth by the International Organization for Standardization, additionally the organizational structure for both the international and US groups are presented. A new technical committee for space is proposed, areas of technical coverage are highlighted and models of space communications protocol and space link access service are presented.

spaceport data communications↗
NASA NTRS1997

Using New Technologies in Support of Future Space Missions

This paper forms a perspective of how new technologies such as onboard autonomy and internet-like protocols will change the look and feel of operations. It analyzes the concept of a lights-out mission operations control center and it's role in future mission support and it describes likely scenarios for evolving from current concepts.

Future Missions Support Technologies↗
NASA NTRS1994

Standard protocol stack for mission control

It is proposed to create a fully 'open' architectural specification for standardized space mission command and control. By being open, i.e., independent for any particular implementation, diversity and competition will be encouraged among future commercial suppliers of space equipment and systems. Customers of the new standard capability are expected to include: (1) the civil space community (e.g., NASA, NOAA, international Agencies); (2) the military space community (e.g., Air Force, Navy, intelligence); and (3) the emerging commercial space community (e.g., mobile satellite service providers).

Hooke, Adrian J.↗
NASA NTRS1994

The Space Communications Protocol Standards Program

In the fall of 1992 NASA and the Department of Defense chartered a technical team to explore the possibility of developing a common set of space data communications standards for potential dual-use across the U.S. national space mission support infrastructure. The team focused on the data communications needs of those activities associated with on-lined control of civil and military aircraft. A two-pronged approach was adopted: a top-down survey of representative civil and military space data communications requirements was conducted; and a bottom-up analysis of available standard data communications protocols was performed. A striking intersection of civil and military space mission requirements emerged, and an equally striking consensus on the approach towards joint civil and military space protocol development was reached. The team concluded that wide segments of the U.S. civil and military space communities have common needs for: (1) an efficient file transfer protocol; (2) various flavors of underlying data transport service; (3) an optional data protection mechanism to assure end-to-end security of message exchange; and (4) an efficient internetworking protocol. These recommendations led to initiating a program to develop a suite of protocols based on these findings. This paper describes the current status of this program.

Jeffries, Alan↗
NASA NTRS1990

CCSDS Advanced Orbiting Systems - International data communications standards for the Space Station Freedom

Established in 1982, the Consultative Committee for Space Data Systems (CCSDS) is an international organization that is staffed by data-handling experts from nearly all of the world's major space agencies. Its goal is to develop standard data-communications techniques so that several agencies may cross-support each other's data flow and thus allow complex, international missions to be flown. Under the general umbrella of Advanced Orbiting Systems (AOS), an international CCSDS task force was formed in 1985 to develop standard data-communications concepts for manned missions, such as the Space Station Freedom and the Hermes space plane, and large unmanned vehicles, such as polar orbiting platforms. The history of the CCSDS and the development of the AOS recommendation are reviewed, and the user services and protocols embodied in its systems architecture are introduced.

Hooke, Adrian J.↗
NASA NTRS1990

Telemetry and command standards

The first phase of the international Consultative Committee for Space Data Systems (CCSDS) efforts toward the definition of standards for space telemetry, spacecraft tracking, and command functions has established a set of standard space communications techniques capable of satisfying almost the entire spectrum of space mission user requirements. This was achieved by focusing on the distinctive problems associated with the space/ground data link, and developing the infrastructural system designated the 'Open Systems Interconnection'. The intrinsically international coordination by CCSDS of development efforts ensures highly flexible mutual support activities by the various national space agencies.

Hooke, Adrian J.↗
NASA NTRS1990

Communication protocol standards for space data systems

The main elements and requirements of advanced space data networks are identified. The communication protocol standards for use on space missions during the coming decades are described. In particular, the blending of high-performance space-unique data transmission techniques with off-the-shelf open systems interconnection (OSI) protocols is described.

Hooke, Adrian J.↗