• High-Speed Wideband Frequency Synthesis

      Elo, Mark; Giga-Tronics Inc. (International Foundation for Telemetering, 2013-10)
    • TSPI Radar Methodologies for Improved Positional Performance/Accuracy of C-Band Auto-tracking Telemetry

      Sternke, Barry; Ray, Matthew; BAE Systems (International Foundation for Telemetering, 2013-10)
    • International Telemetering Conference Proceedings, Volume 49 (2013)

      Unknown author (International Foundation for Telemetering, 2013-10)
    • MIMO Capacity Gains for Test Range Telemetry

      Reed, David E.; Rainhard, Robert L.; Real Time Logic, Inc. (International Foundation for Telemetering, 2013-10)
      The combination of power limitations and platform dynamics often preclude the use of highly bandwidth efficient modulations for test range telemetry. Instead, constant envelope modulations like pulse coded modulation - frequency modulation (PCM-FM) and other continuous phase modulation (CPM) are typically used. A solution may be to employ multiple-input multipleoutput (MIMO) antenna techniques. MIMO processing may be used to separate the signals from multiple transmitters. If data is dynamically allocated to the transmitters with acceptable received signal-to-noise ratio (SNR), the telemetry throughput may be optimized. The performance depends on the geometry and propagation conditions between the antennas.
    • Pulse Position Modulation using BICM-ID for FSO Channels

      Borah, Deva K.; Kumar, Kuldeep; New Mexico State University (International Foundation for Telemetering, 2013-10)
      We investigate pulse position modulation (PPM) and multipulse PPM (MPPM) for free space op- tical channels using bit interleaved coded modulation with iterative decoding. Data bits are first encoded by using a non recursive convolutional code and the coded bits after an interleaver are modulated before transmission. Iterative decoding is performed at the receiver. Optimized mapping is designed for MPPM. A genetic algorithm is used to find the optimized mapping for MPPM. Our simulation results show that a significant improvement in the error performance can be achieved by using optimized mapping and iterative decoding at the receiver.
    • Optical Orbital Angular Momentum for Secure and Power Efficient Point-to-Point FSO Communications

      Alfowzan, Mohammed; Khatami, Mehrdad; Vasic, Bane; University of Arizona (International Foundation for Telemetering, 2013-10)
      We address the problem of detection in orbital angular momentum (OAM). The focus of our analysis will be on the power efficient Q-ary Pulse Position Modulation (Q - PPM). Free space optical signals sent through wireless channels are degraded by atmospheric turbulence. In this paper a novel detection approach based on a factor graph representation of OAM Q-PPM signalling is presented to equalize for the crosstalk among orbital angular momentum vortices. It will be shown that our proposed detection algorithm significantly outperforms the separate detection scenario in terms of error rate performance.
    • The BCT-302 1553 Test Bus Card

      Natale, Louis; Wierzbicki, Craig; Lockheed Martin Aeronautics; Telectronics Technology Corporation (International Foundation for Telemetering, 2013-10)
      The desire to control an LRU and/or MIL-STD 1760 store via an independent 1553 stream on current weapon platforms created the need for the development of the BCT-302 1553 Test Bus Card. This solution solves the issues of integration without the need to perform an aircraft OFP change. The BCT- 302 is a customized MIL-STD-1553 card for use in Teletronics Technology Corporation, (TTC), Airborne Instrumentation Multiplexer (AIM) and High-Speed Avionics Data Acquisition Unit (HSAVDAU) products. The BCT-302 card consists of two redundant MIL-STD-1553 ports. Each port is independently configurable by the AIM/HSAVDAU host processor to function as a Bus Controller (BC), Remote Terminal (RT) or Bus Monitor (BM). The system is capable of cherry picking parameters from any 1553 bus and retransmitting assembled messages to a weapon and/or an LRU in a 1553 format. This paper describes the design requirements of the BCT card and how those requirements were met during an AIM-9X launch on an F-22.
    • Field Programmable Gate Array Application for Decoding IRIG-B Time Code

      Brown, Jarrod P.; Eglin Air Force Base (International Foundation for Telemetering, 2013-10)
      A field programmable gate array (FPGA) is used to decode Inter-Range Instrumentation Group (IRIG) time code for a PC-based Time-Space-Position Information (TSPI) acquisition. The FPGA architecture can latch time via an external event trigger or a programmable periodic internal event. By syncing time with an external IRIG Group Type B (IRIG-B) signal and using an 8 megahertz (MHz) internal clock, captured time has 125 nanosecond (ns) precision. A Range Instrumentation Control System (RICS) application utilizing the FPGA design to capture IRIG time is presented and test results show matching time accuracy when compared to commercial IRIG time capture hardware components.
    • Machine Vision and Autonomous Integration Into an Unmanned Aircraft System

      Dianics, James; Fasel, Hermann F.; Marcellin, Michael W.; Van Horne, Chris; University of Arizona (International Foundation for Telemetering, 2013-10)
      The University of Arizona's Aerial Robotics Club (ARC) sponsors the development of an unmanned aerial vehicle (UAV) able to compete in the annual Association for Unmanned Vehicle Systems International (AUVSI) Seafarer Chapter Student Unmanned Aerial Systems competition. Modern programming frameworks are utilized to develop a robust distributed imagery and telemetry pipeline as a backend for a mission operator user interface. This paper discusses the design changes made for the 2013 AUVSI competition including integrating low-latency first-person view, updates to the distributed task backend, and incremental and asynchronous updates the operator's user interface for real-time data analysis.
    • Telemetry and Command Link for University Mars Rover Vehicle

      Kosbar, Kurt; Hobbs, Jed; Meye, Mellissa; Trapp, Brad; Ronimous, Stefan; Ayerra, Irati; Missouri University of Science and Technology (International Foundation for Telemetering, 2013-10)
      This paper describes a telemetry and command communication link used as part of a rover entered in the University Mars Rover competition. The link is capable of transmitting multiple real time video streams, along with other telemetry data from a rover to a base station approximately one kilometer away, under non-line-of-sight conditions. Low data rate commands are sent to the rover, to control its movement. To simulate conditions on Mars, the link cannot use existing cellular or satellite communication infrastructure. The data link uses the 70 cm Amateur Radio band for transmission in both directions.
    • Smart Data Selection

      Wigent, Shannon; Mazzario, Andrea; Laulima Systems; Kauai Software Solutions (International Foundation for Telemetering, 2013-10)
      The fundamental precept presented in the iNET Concept of Operations, v. 2007.1 is that new telemetry technologies must be created to enable a more flexible approach to testing that includes on-demand access to information acquired on the test article and the ability to reconfigure the telemetry stream definition. Significant advances have been made in this area but one approach that has not yet been addressed is a concept introduced early within the iNET CONOPS document, that "The dominant inherent nature of TM in DoD testing is sampled time-history data from an ultimately analog world, (which) is not going to change drastically regardless of how data is transmitted to ground. A factor that could change that fact most is the degree to which answers instead of data are obtained on board the test vehicle." Ultimately, the most effective way of dealing with the exponentially growing gap between the quantities of data generated onboard the test article and the rate at which it is transmitted to ground is to generate answers on board the test article. The Test Resource Management Center (TRMC) Test and Evaluation (T&E) Science and Technology (S&T) Spectrum Efficient Test (SET) Program is sponsoring development of the Smart Data Selection (SDS) system which provides a capability to continually monitor measured data and then select which parameters, or which combination of parameters, to send to ground in a given time interval, based on what is actually happening with the system under test. This paper will describe the SDS system architecture and the specialized algorithms developed to analyze and determine which data to transmit from the test article to the ground. This paper will also describe the training methods which allow the SDS system to "learn" which behaviors are "normal" and which are "abnormal". Finally, this paper will provide analysis results to substantiate the savings in bandwidth, simplified pre-test setup, and increased operator awareness. The benefits of this work, in terms of efficient use of spectrum to support T&E are substantial, and they could be leveraged by any DoD ranges that execute aeronautical and precision-guided munitions testing.
    • Using Image Processing and Pattern Recognition in Images from Head-Up Display

      Guarino de Vasconcelos, Luiz Eduardo; Kusomoto, André Yoshimi; Leite, Nelson Paiva Oliveira; Instituto de Pesquisa e Ensaios em Voo (International Foundation for Telemetering, 2013-10)
      Images frames have always been used as information source for the Flight Test Campaigns (FTC). During the flight tests, the images displayed on the Head-Up Display (HUD) could be stored for later analysis. HUD images presents aircraft data provided by its avionics system. For a simplified Flight Test Instrumentation (FTI), where data accuracy is not a big issue, HUD images could become the primary information source. However in this case data analysis is executed manually, frame by frame for information extraction (e.g. Aircraft position parameters: Latitude; Longitude and Altitude). In approximately one hour of flight test about 36,000 frames are generated using standard-definition television format, therefore data extraction becomes complex, time consuming and prone to failures. To improve efficiency and effectiveness for this FTC, the Instituto de Pesquisas e Ensaios em Voo (IPEV - Flight Test and Research Institute) with Instituto Tecnológico de Aeronáutica (ITA - Aeronautical Technology Institute) developed an image processing application with pattern recognition using the correlation process to extract information from different positions on the images of the HUD. Preliminary test and evaluation carried out by 2012 using HUD images of the jet fighter EMBRAER A1. The test results demonstrate satisfactory performance for this tool.
    • Calibration of High Dimensional Compressive Sensing Systems: A Case Study in Compressive Hyperspectral Imaging

      Gehm, Michael; Poon, Phillip; Dunlop, Matthew; University of Arizona (International Foundation for Telemetering, 2013-10)
      Compressive Sensing (CS) is a set of techniques that can faithfully acquire a signal from sub- Nyquist measurements, provided the class of signals have certain broadly-applicable properties. Reconstruction (or exploitation) of the signal from these sub-Nyquist measurements requires a forward model - knowledge of how the system maps signals to measurements. In high-dimensional CS systems, determination of this forward model via direct measurement of the system response to the complete set of impulse functions is impractical. In this paper, we will discuss the development of a parameterized forward model for the Adaptive, Feature-Specific Spectral Imaging Classifier (AFSSI-C), an experimental compressive spectral image classifier. This parameterized forward model drastically reduces the number of calibration measurements.
    • Using the Telemetry Application of TENA and Other JMETC Tools in Joint Distributed LVC Environments

      Hudgins, Gene; Poch, Keith; Treakle, Tom; Secondine, Juana; TENA Software Development Activity (SDA) (International Foundation for Telemetering, 2013-10)
      The TENA SDA has developed and validated a common architecture called TENA, which provides for real-time software system interoperability using the TENA Middleware, as well as interfaces to existing range assets, C4ISR systems, and simulations. The TENA Middleware, currently at Release 6.0.3, has been used by the range community for testing, evaluation, and feedback in many major exercises since 2002 and has been selected as the interoperability solution in JMETC's distributed testing. Through investment in TRMC's T&E/S&T Program and innovative use by Pacific Missile Range Facility (PMRF) and White Sands Missile Range (WSMR), TENA is expanding to the Telemetry community.
    • The Subminiature Flight Safety System (SFSS) Development Progress

      Lambeth, Stephen; Dehmelt, Chris; Eglin Air Force Base; L-3 Communications Telemetry East (International Foundation for Telemetering, 2013-10)
      SFSS is a universal, small, and low cost, functionally redundant flight termination system (FTS) that incorporates encoding, processing and TSPI capabilities, provides critical health/safety/welfare monitoring and allows for highly efficient telemetering of weapon application and FTS data. The SFSS is intended as a solution to provide weapon system developers, test agencies, and range safety officers the ability to track, monitor, and if necessary, terminate all types of weapon systems. The SFSS components are intended to significantly reduce the recurring costs and improve the quality of test support by minimizing physical intrusion into weapon systems, and potentially eliminating the need for warhead removal. In addition, a common hardware suite assists in reducing the overall system cost of acquisition, a key element in today's world of stressed budgets. The SFSS is designed to interface with newly developed weapon systems, while providing the capability to be integrated into existing weapon systems with nominal modifications to the platform. The SFSS development is a multi-disciplinary effort, whose participating organizations include industry suppliers, range and system safety representatives, and technical offices from all branches of the armed services, as well as the weapons vendors to ensure that applicable technical and regulatory requirements are met. The original requirements for the project were defined within the SFSS System Performance Specification (SPS), which has undergone a number of updates as the design effort has progressed from concept to assembly and debug of the prototype components. This paper will provide an overview of the overall program status, key features of the SFSS including features added during development, critical design challenges, and additional activities planned to enhance the functionality of the system.
    • C-Band Missile Telemetry Test Project

      Kujiraoka, Scott; Fielder, Russell; Naval Air Warfare Center Weapons Division (NAWCWD) (International Foundation for Telemetering, 2013-10)
      The physics associated with transmitting and receiving a telemetry signal at a frequency greater than an octave above the current operating band is such that an end-to-end evaluation of the complete data link system (both the transmit and receive side) is required. In 2012, Airborne Instrumentation Systems Division (AISD), Naval Air Warfare Center Weapons Division (NAWCWD) was sponsored by the Office of the Secretary of Defense (OSD) to develop a couple of short-range air-to-air missile platforms that use a specially-designed warhead-replaceable telemetry section incorporating three data links: (1) an S-band link to transmit Time- Space-Position Information (TSPI), (2) an C-band link, and (3) an additional S-band link where the latter two are transmitting the same pseudo-random bit sequence at the same effective radiated power level. Flight testing will consist of a series of captive tests conducted over land and water. The tests will be performed under a variety of conditions to induce potential issues caused by multipath, atmospheric ducting, fast-slewing of the tracking antenna, and large propagation losses. Flight testing will culminate with the live-fire of a missile over a military land range. This paper describes the continuing efforts of this test program from these series of flight tests, thus quantifying the performance of C-band telemetry data transmission as compared to the S-band.
    • A Fully Network Controlled Flight Test Center and Remote Telemetry Centers

      Rubio, Pedro; Jimenez, Francisco; Alvarez, Jesus; Aribus Military (International Foundation for Telemetering, 2013-10)
      The purpose of this abstract is to show how Airbus Military Telemetry Ground Station has evolved from a Single Ground Station towards a Distributed Ground Station. For this we had to adapt ourselves to our growing number of remote stations, as well as developing the control needed to reach full interoperability among remote stations. In short, creating a Virtual Ground Station. In this paper we describe the starting point, a single ground station and its control, and the arrival point, different Ground Stations, and how control has evolved by using our own developed software called ENCOS (Network Equipment COntrol System).
    • Dynamically Reconfigurable Imaging with Flexible Transceiver Array and Programmable Probing Waveforms

      Wu, Mei-Su; Lee, Michael; Lee, Hua; University of California (International Foundation for Telemetering, 2013-10)
      This paper provides the overview of the concept of reconfigurable imaging systems with programmable FMCW probing waveforms. The reconfigurable modality is applied to both the transceiver aperture arrays and the probing signals for the optimization of the resolving capability. The applications include both microwave and acoustical imaging.
    • "Big Data" Management and Security Application to Telemetry Data Products

      Kalibjian, Jeff; Hewlett Packard Corporation (International Foundation for Telemetering, 2013-10)
      "Big Data" [1] and the security challenge of managing "Big Data" is a hot topic in the IT world. The term "Big Data" is used to describe very large data sets that cannot be processed by traditional database applications in "tractable" periods of time. Securing data in a conventional database is challenge enough; securing data whose size may exceed hundreds of terabytes or even petabytes is even more daunting! As the size of telemetry product and telemetry post-processed product continues to grow, "Big Data" management techniques and the securing of that data may have ever increasing application in the telemetry realm. After reviewing "Big Data", "Big Data" security and management basics, potential application to telemetry post-processed product will be explored.
    • Writing a Validator for TMATS

      Kelly, Bryan; Tyndall Air Force Base (International Foundation for Telemetering, 2013-10)
      Applications that use TMATS benefit from the ability to presume that the TMATS data is well constructed. This need is met by a TMATS validator. Some classified systems need source code rather than an executable to avoid expensive testing before being allowed in. An Open Source Validator is proposed, presented and made available to the public. Major points and difficulties are discussed. The source is available in a Visual Studio 2008 project here: www.bkelly.ws/irig/validator.html A bulletin board for TMATS / Chapter 10 discussion is here: http://www.bkelly.ws/irig_106/