• UNLEASHING THE POWER OF XML

      Corry, Diarmuid; ACRA CONTROL Inc (International Foundation for Telemetering, 2007-10)
      Over the last few years XML has been growing in importance as a language for describing the meta-data associated with a complete flight test. Three years ago ACRA CONTROL introduced XidML as an open, published XML standard describing flight test data acquisition from the air to the ground. Recently, XML has been adopted by the TMATS RCC committee and is currently being studied by iNET. While many papers have focused on what XML is and why it is a powerful language, few have related this to practical benefits for the end user. This paper attempts to address this gap. The paper describes simple cost effective tools for generating XML through an intuitive GUI, validating XML information against a schema and transforming XML into useful reports. In particular a suite of value added tools for XidML is described.
    • AN UPDATE ON NETWORK-BASED SECURITY TECHNOLOGIES APPLICABLE TO TELEMETRY POST-PROCESSING AND ANALYSIS ACTIVITIES

      Kalibjian, Jeff; Hewlett-Packard Corporation (International Foundation for Telemetering, 2007-10)
      Networked based technologies (i.e. TCP/IP) have come to play an important role in the evolution of telemetry post processing services. A paramount issue when using networking to access/move telemetry data is security. In past years papers have focused on individual security technologies and how they could be used to secure telemetry data. This paper will review currently available network based security technologies, update readers on enhancements, and discuss their appropriate uses in the various phases of telemetry post-processing and analysis activities.
    • THE USE OF AN IRIG-106 CHAPTER 10 RECORDER AS A TELEMETRY SYSTEM

      Berdugo, Albert; Teletronics Technology Corporation (International Foundation for Telemetering, 2007-10)
      IRIG-106 Chapter 10 has become the recording standard for most of the new flight test programs and many of the current ongoing programs. The primary goal of the standard was to define a common format for recording 100% bulk data such as PCM, MIL-STD-1553 busses, Video/Audio, ARINC-429, Ethernet, IEEE-1394, Analog Data, and others. In most cases the standard has provided the instrumentation engineers and the data analysts with a recording solution that meets their needs. Many programs require transmission of safety of flight data from a subset of the data acquired by the recorder. This may include selected video/audio channels, selected avionics bus data, and others. This requirement presents a dilemma to the flight test engineer who must duplicate part of the system for telemetry. This paper discusses several applications in which the IRIG-106 Chapter 10 recorder can be used as a telemetry system. It will include the transmission of bulk MIL-STD-1553 data per IRIG-106 Chapter 8, transmission of multiple Video/Audio and PCM data channels, and transmission of selected avionics data per IRIG-106 Chapter 4.
    • USING COOPERATIVE RESEARCH AND DEVELOPMENT AGREEMENTS (CRADA) TO REDUCE THE TRANSITION TO PRODUCTION RISK OF A MISSILE TELEMETRY SECTION

      Kujiraoka, Scott R.; Fielder, Russell G.; NAVAIR (International Foundation for Telemetering, 2007-10)
      The Joint Advanced Missile Instrumentation (JAMI) Program’s main thrust has been the integration of Global Positioning System (GPS) tracking technology into the Department of Defense (DoD) Missile Test Ranges. This technology could be used for Time, Space, Position, and Information (TSPI), Flight Termination (FTS), or End Game Scoring purposes. However the Program’s main goal is to develop Proof-of-Concept components only. Transitioning Missile technology developed by the Government to Private Industry, so that it can be economically mass produced, has been quite a challenge. Traditionally, private industry has had to bid on proposals without much detailed information on how these components have been designed and fabricated. These unknown risks, Non-Recurring Engineering (NRE) and Missile Flight Qualification costs, routinely have significantly increased the price of these procurement contracts. In order so that the Fleet can economically utilize these components in the field, Cooperative Research and Development Agreements (CRADA) between the Government and Private Industry have been used to successfully transition Government developed technology to mass production. They can eliminate the NRE and flight qualification costs to provide for an economical and low risk method of providing the Fleet with the latest advances in GPS Tracking Technology. This paper will discuss how this is currently being accomplished in the development of a conformal wraparound instrumentation antenna for a five-inch diameter Missile Telemetry (TM) Section.
    • USING EXCEL MACROS FOR CHARTING

      Kelly, Bryan; Honeywell Aerospace (International Foundation for Telemetering, 2007-10)
      This paper introduces a set of macros that automate the importing of antenna data into Excel and charting that data. These macros (as discussed here) import data from a ViaSat ACUs (Antenna Control Unit) and a TCS ACU (Telemetry & Communications Systems Inc). After the import is complete, the macros can build a set of charts, all formatted and labeled in a predetermined and standard manner. A task that may take half a day or more can be completed in minutes. The concept and layout of the macros lend them to quick adaptation to your data. In scenarios of “test and collect” followed by “import and chart”, the data can be imported and charted within the minute.
    • VEHICLE NETWORK TECHNOLOGY DEMONSTRATION

      Grace, Thomas; Hodack, Dave; Naval Air Systems Command (International Foundation for Telemetering, 2007-10)
      iNET is a project tasked to foster advances in networking and telemetry technology to meet emerging needs. This paper describes one objective of the project, which is standardization and interoperability. It begins to explore issues for achieving a level of interoperability among differing vendor’s hardware such as data acquisition units, data recorders, video systems, transceivers, and network encryption. Specifically, this paper addresses the expansion of the current demonstration system with the addition of multiple vendor data acquisition units. It will also attempt to address the level of standardization necessary for achieving interoperability while still enabling vendors to add their value added contributions into their products.
    • A WIDEBAND CHANNEL MODEL FOR SHF-BAND TELEMETRY OVER WATER

      Rice, Michael; Lei, Qiang; Brigham Young University (International Foundation for Telemetering, 2007-10)
      Data recorded during multipath channel sounding experiments, conducted off the coast of Pt. Mugu Naval Air Station at 8.0 GHz was used to model the multipath interference at SHF band over water. The modeling results show that a three ray model consisting of line-of-sight propagation and two reflected propagation paths is a good fit for the measured channel frequency responses. The properties of the multipath reflections are determined by geometry and sea state. For calm seas, the first reflection is a large amplitude short-delay reflection whereas for rough seas, the first reflection has a smaller amplitude and longer delay. The second reflection has a smaller amplitude and larger delay when the sea is calm.
    • A WIRELESS NETWORK-BASED RFNET SOLUTION FOR FLIGHT TEST

      Xuming, Fan; Xiaoxian, Bai; Baoqiang, Zhao; Junmin, Zhang; Chinese Flight Test Establishment (International Foundation for Telemetering, 2007-10)
      An rfNET solution based on IEEE 802.11 wireless network is presented to perform one-way remote transmission of airborne instrumentation data and multi-channel video images in flight test by modifying the wireless network bridge and UDP protocol. Its architecture and structure is introduced briefly and the results of ground transmission test and flight demonstration transmission are provided. It also points out the major problems of this solution for engineering application and their solutions.
    • WIRELESS SENSOR SYSTEM FOR AIRBORNE APPLICATIONS

      Pellarin, Steve; Musteric, Steven; Teletronics Technology Corporation; Eglin Air Force Base (International Foundation for Telemetering, 2007-10)
      Adding an instrumentation / telemetry system to a test article has historically required an intrusive installation. Power, wiring, and available space typically present significant challenges. There has been a long-standing need in the test and training community for a non-intrusive, flexible and modular instrumentation and telemetry system that can be installed on an aircraft or other test article without the need for permanent modifications. In addition, as available space in aircraft weapon bays, small weapons, and unmanned vehicles becomes a premium, the miniaturization of remote sensors and telemetry units becomes critical. This paper describes the current status of the Advanced Subminiature Telemetry System (ASMT) Initial Test Capability Project. It discusses the challenges that have been overcome in developing a wireless sensor network system for use in an airborne test environment. These include wireless sensor packaging design, selection of operating frequencies, COTS wireless devices, batteries, system synchronization and data bandwidth calculations. The paper will also document the progress to date including preliminary test results.
    • XML META-DATA EXPERIMENTS

      K/Bidy, Gilles; L-3 Communications (International Foundation for Telemetering, 2007-10)
      As part of the technology upgrades driven by the iNet initiative, there is a need to establish a meta-data standard to describe configuration information for the system under test. The technology identified for such a standard is XML and XSD schemas. This paper presents findings from various experiments to import and export existing telemetry configuration information to XML based on the new Meta-data model. In addition, this paper will discuss the possible conversions to and from the existing IRIG TMATS standard.