• CAPS: AN EGLIN RANGE STANDARD FOR PC-BASED TELEMETRY DATA REDUCTION

      Thomas, Tim; TYBRIN Corporation; Eglin Air Force Base (International Foundation for Telemetering, 2002-10)
      A need exists to provide a flexible data reduction tool that minimizes software development costs and reduces analysis time for telemetry data. The Common Airborne Processing System (CAPS), developed by the Freeman Computer Sciences Center at Eglin AFB, Florida, provides a generalpurpose data reduction capability for digitally recorded data on a PC. Data from virtually any kind of MIL-STD-1553 message or Pulse Code Modulation (PCM) frame can be extracted and converted to engineering units using a parameter dictionary that describes the data format. The extracted data can then be written to a file, ASCII or binary, with a great deal of flexibility in the output format. CAPS has become the standard for digitally recorded data reduction on a PC at Eglin. New features, such as composing derived parameters using mathematical expressions, are being added to CAPS to make it an even more productive data reduction tool. This paper provides a conceptual overview of the CAPS version 2.3 software.
    • TELEMETRY GROUND STATION OPEN SOURCE DEVELOPMENT

      James, William G., Jr.; Eglin Air Force Base (International Foundation for Telemetering, 2002-10)
      The Central Control Facility at Eglin Air Force Base has acquired full intellectual rights to a single board telemetry card with device driver and test software. This card has an integrated IRIG 106 PCM decommutator, IRIG time clock and minimal PCM simulator capability using the latest in Field Programmable Gate Array technology. Eglin will offer this capability to the telemetry community as both open source hardware and software and solicit partnerships with both government and private industry for both open source and closed source for-profit products.
    • Time-Tagging Issues Relating to Networked Data Acquisition Systems

      Owens, Tara; Berard, Alfredo; Boolos, Tim; Eglin Air Force Base (International Foundation for Telemetering, 2002-10)
      The CENTS Program is a Central Test and Evaluation Investment Program (CTEIP) effort conducted by the 46th Test Wing at Eglin Air Force Base, Florida. The project uses advanced internetworking technology to collect data unobtrusively from multiple sensors located throughout the aircraft without the time and expense of installing new wires. The sensors are used to unobtrusively extract data from several Line Replaceable Units (LRU’s). The harvested data is then transported to a master network controller using the existing aircraft power lines. A critical aspect of networked data acquisition is time-tagging the data so that the data timeline can be reconstructed to a specified resolution at the conclusion of the tests. This paper will discuss the time-tagging issues that arise when developing a networked data acquisition system, especially how they relate to the current effort to develop a power line based data acquisition network. In addition this paper will detail the scheme currently being tested to time tag data in the Common Event Network Test-Instrumentation System (CENTS) developed by the 46 TW/TSI Flight Test Division, Air Armament Center, Eglin AFB, FL.
    • WHO MOVED MY TAPE RECORDER FLAVORED CHEESE

      Berard, Alfredo J.; Chalfant, Tim; Lloyd, Joe; Small, Marty; Buckley, Mark; Bagó, Balázs; Lockard, Michael; Eglin Air Force Base; Edwards Air Force Base; Navair; et al. (International Foundation for Telemetering, 2002-10)
      For the last 30 years Magnetic Tape Systems have been the primary means of recording data from airborne instrumentation systems. Increasing data rates and harsh environmental requirements have often exceeded the ability of tape-based systems to keep pace with platform technology. This paper examines operational and data reduction benefits when employing the IRIG 106 Chapter 10 Solid State Recorder Standard introduced by the Range Commanders Council (RCC) Telemetry Group (TG). The Standard and this paper address media formatting, data formatting for a variety of different data types, data downloading, and data security, along with serial command and control and discrete command and control of the recorder. This paper also addresses software data processing and raw data reconstruction of Chapter 10 data.