• AUTOMATING VERIFICATION FOR LEGACY SYSTEMS: A CASE STUDY OF TECHNOLOGY SUSTAINMENT WITHIN THE NASA SPACE NETWORK

      Irvin, Dana; Otranto, John; Lokshin, Kirill; Puri, Amit; Ingenicomm, Inc. (International Foundation for Telemetering, 2017-10)
      The NASA Space Network (SN), which consists of the geosynchronous Tracking and Data Relay Satellite (TDRS) constellation and its associated ground elements, is a critical national space asset that provides near-continuous, high-bandwidth telemetry, command, and communications services for numerous spacecraft and launch vehicles. The Space Network includes several key ground system elements, one of which is the White Sands Complex Data Interface Service Capability (WDISC). The WDISC has undergone multiple cycles of modification and technology refresh over its lifetime, making test automation an attractive option for reducing system verification and validation cost. This paper considers the implementation of automated testing for the WDISC as a case study in technology sustainment, discusses the principal benefits and challenges of implementing test automation for a legacy system, and presents findings that demonstrate the effectiveness of such automation models.
    • CHALLENGES IN THE DESIGN AND IMPLEMENTATION OF AIRBORNE TELEMETRY PROCESSING SYSTEMS

      Otranto, John; Eckman, Bill; Irvin, Dana; Tao, Felix; Lokshin, Kirill; Puri, Amit; Ingenicomm, Inc. (International Foundation for Telemetering, 2017-10)
      While typical telemetry processing systems are fixed, ground-based assets, certain mission profiles or telemetry acquisition models may involve telemetry processing systems which reside on other platforms, such as ships, mobile vehicles, or airplanes. The design and implementation of telemetry processing systems for these platforms poses unique challenges, which may include requirements for unusual mechanical packaging, heightened electromagnetic sensitivity, or specialized electrical interfaces. This paper presents some of the key challenges involved in the design and implementation of an airborne telemetry processing system and discusses how lessons learned from solving these challenges may be applied to future telemetry processing system designs.