International Telemetering Conference Proceedings / October 26-29, 1992 / Town and Country Hotel and Convention Center, San Diego, California / The vast amount of data telemetered from space probe experiments requires careful management and tracking from initial receipt through acquisition, archiving, and distribution. This paper presents the automated system used at the Phillips Laboratory, Geophysics Directorate, for tracking telemetry data from its receipt at the facility to its distribution on various media to the research community. Features of the system include computerized databases, automated generation of media labels, automated generation of reports, and automated archiving.

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This research is concerned with the retrieval of visual or pictorial information from videodisc databases. Videodisc technology has made automated storage and retrieval of high quality visual information possible. A problem is that traditional keyword or text access to pictorial information may be inappropriate if the type of information sought cannot be readily described in words. An answer may be to encourage visual searching or browsing. The challenge lies in creating flexible retrieval systems which will both maximise search efficiency and accommodate the individual user. An experimental retrieval environment was developed to examine visual information search strategies. This system allowed for three search types: keyword search, specific browsing, and scanning. Over two experiments visual information search and browsing strategies were identified and characterised: seeking, focused exploring, open exploring, and wandering. In addition, five factors which influence visual information search strategies were identified: the nature of the information itself, database structure, the task or information need, the user, and the interface. This research combines elements of information retrieval and human factors to point to ways in which visual information retrieval systems can be developed which will meet the needs of their users. System design must take account of individual search behaviour and utilise knowledge of the factors which influence user interaction with the system in the search and retrieval process.

International Telemetering Conference Proceedings / October 17-20, 1988 / Riviera Hotel, Las Vegas, Nevada / In the past, telemetry data systems in support of JPL flight projects -- such as Voyager and Galileo -- were designed specifically for each mission. Third-generation computers and minicomputers were combined into a distributed system, and many man-hours of software development were invested to meet each project's unique processing requirements. These systems were used to support the Spacecraft testing on the ground and -- later -- for mission operations after launch. The Magellan System Test Data Processing Subsystem (STDPS) marks a departure from these past designs. For the first time, a re-usable telemetry-processing subsystem has been designed that is flexible enough to meet the spacecraft-testing requirements of the present project -- and can be easily changed for future projects as well. These changes are all accomplished through a user-friendly, menu-oriented interface. Extensive software re-programming is no longer required. The Magellan spacecraft is being constructed for JPL by Martin Marietta Astronautics Group, Denver, Colorado. The STDPS is currently in Denver, supporting the spacecraft testing.

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International Telemetering Conference Proceedings / October 30-November 02, 1995 / Riviera Hotel, Las Vegas, Nevada / The RAH-66 Comanche flight test program requires a state of the art air vehicle and avionics data system consisting of: 1) An airborne, all digital multiplexing and recording system capable of combining digital streams at very high data rates; 2) The ability to record high speed avionics busses from the MEP (Mission Equipment Package) such as MIL-STD-1553B, HSDB (High Speed Data Bus,) PI (Processor Interconnect) Bus, DFN (Data Flow Network,) and TM (Test and Measurement Bus;) 3) A miniaturized, programmable, modular/distributed high speed PCM measurement system for 550 air vehicle measurements recorded on the Comanche Flight Test Aircraft and Propulsion System Test Bed; 4) an airborne digital multiplexing and recording system for recording a composite stream on an Ampex DCRsi tape recorder; 5) A high capacity ground data processing system using parallel processing computers for real time data compression; and 6) distributed analysis system using workstations for data processing with centralized disk storage.

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