• A Software Defined Radio Based Architecture for the Reagan Test Site Telemetry Modernization (RTM) Program

      Ardrey, David; Gimler, Gregory; Pippitt, Mark; MIT Lincoln Laboratory (International Foundation for Telemetering, 2015-10)
      MIT Lincoln Laboratory has developed a Software Defined Radio based architecture for the Reagan Test Site Telemetry Modernization (RTM) program, which will enhance the current operations of the ground based telemetry systems and enable new modes of operation. There are three main objectives of the RTM program; increasing overall system performance, improving reliability and maintainability, and enabling future customer needs. RTM provides a fully integrated system that can be configured and remotely controlled from a single location. This centralized command and control provides a way to automate certain functions and frees up operator resources, especially for more complex mission scenarios. Software modules, running on general-purpose computers perform signal and data processing that have been traditionally performed in special purpose hardware based components. This provides the flexibility to scale and adapt to future needs, such as spectrum change, increased need for capacity, and changes to modulation, encoding, and compression. Index Terms - Software Defined Radio (SDR), Open systems architecture, telemetry receiver architecture, Aeronautical Mobile Telemetry (AMT)
    • A Model for Cyber Attack Risks in Telemetry Networks

      Dean, Richard; Moazzami, Farzad; Astatke, Yacob; Shourabi, Neda Bazyar; Morgan State University (International Foundation for Telemetering, 2015-10)
      This paper develops a method for analyzing, modeling and simulating cyber threats in a networked telemetry environment as part of a risk management model. The paper includes an approach for incorporating a Monte Carlo computer simulation of this modeling with sample results.
    • B-2 Flight Test Implementation of an Ethernet Based Network System for Data Acquisition

      Hochner, William "Bill"; Northrop Grumman Aerospace (International Foundation for Telemetering, 2015-10)
      Northrop Grumman Corporation's B-2 Flight Test Instrumentation team is revamping its entire Data Acquisition System (DAS) to be an Ethernet based network (EBN) system that will provide simplified wiring, higher speeds, greater capacity, and control over the data. The old system became obsolete in terms of capability and maintainability. New on-board avionic systems also demand that the Flight Test Instrumentation group (INSTR) accommodate fiber and high speed Ethernet data. In addition, the footprint and location for INSTR systems and components will be moved to remote areas. INSTR engineering selected the Teletronics Technology Corporation's Ethernet networked Data Acquisition Units (DAUs), known as MnDAUs, as the core system. Prior to the first flight utilization of the new INSTR DAS will undergo extensive lab and field testing to assure flight test effectiveness and the accuracy of all necessary data products. The goal is to acquire and employ the best system available while avoiding costly lessons.
    • EVTM (Ethernet-Via-Telemetry): Get Ethernet Packetized Data Directly from Your Test Article

      Schultz, Matt; Quasonix (International Foundation for Telemetering, 2015-10)
      This article defines the system design for translating burst Ethernet packetized data into a constant rate serial data stream suitable for transmission over standard telemetry hardware physical links. The system supports both unidirectional (UDP) and bidirectional (TCP/IP, etc.) communications. This paper will evaluate the capabilities and limitations of the established fielded hardware, as well as possibilities for system growth (IRIG Chapter 10 compatibility).
    • Spatial Diversity Combining Using Blind Estimation Techniques

      Ardrey, David; Gimler, Gregory; Pippitt, Mark; MIT Lincoln Laboratory (International Foundation for Telemetering, 2015-10)
      This paper proposes a spatial diversity combining approach by which spatially diverse telemetry signals from multiple antennas are combined before they are demodulated. The combined signal is guaranteed to at least replicate and in many cases improve upon the performance of any single antenna. By taking advantage of blind channel estimation, the combined signal can be computed as a time varying weighted sum of digital I and Q samples from multiple antennas. Multiple antenna combining is enabled by improved computation capability, high speed network connectivity, and accurate clock synchronization. The algorithm will be demonstrated at the Reagan Test Site (RTS), whose modernization program encompasses multiple antenna sites with network capability and a state of the art software defined radio back end. This paper details the spatial diversity combining algorithm and discusses its merits and challenges. Index Terms - Telemetry, Reagan Test Site, blind estimation, multiple antenna combining, best source selection, spatial diversity combining.
    • Metrics and Test Procedures for Data Quality Estimation in the Aeronautical Telemetry Channel

      Hill, Terry; Quasonix (International Foundation for Telemetering, 2015-10)
      There is great potential in using Best Source Selectors (BSS) to improve link availability in aeronautical telemetry applications. While the general notion that diverse data sources can be used to construct a consolidated stream of "better" data is well founded, there is no standardized means of determining the quality of the data streams being merged together. Absent this uniform quality data, the BSS has no analytically sound way of knowing which streams are better, or best. This problem is further exacerbated when one imagines that multiple vendors are developing data quality estimation schemes, with no standard definition of how to measure data quality. In this paper, we present measured performance for a specific Data Quality Metric (DQM) implementation, demonstrating that the signals present in the demodulator can be used to quickly and accurately measure the data quality, and we propose test methods for calibrating DQM over a wide variety of channel impairments. We also propose an efficient means of encapsulating this DQM information with the data, to simplify processing by the BSS. This work leads toward a potential standardization that would allow data quality estimators and best source selectors from multiple vendors to interoperate.
    • Leveraging PLC Technology to Interface Network Sensors and Subsystems on Legacy Platforms

      Kurkjian, John G.; 5-D Systems, Inc. (International Foundation for Telemetering, 2015-10)
      Power line communications (PLC)-based transceivers provide an alternative to establishing dedicated aircraft Ethernet networks. Adding new aircraft functionality or installing special purpose instrumentation often requires significant engineering and aircraft down time to complete. PLC-based networks can reduce project cost and schedule by enabling localized aircraft modifications and leveraging existing aircraft wiring for the Ethernet medium. PLC standards continue to evolve and achieve greater throughput rates and noise mitigation. Ethernet communications have been tested over AC and DC power busses, data busses, and discrete wiring. PLC networks have been successfully demonstrated in avionics test beds and aircraft (including live video transfers) without causing interference to the basic systems or the underlying wiring functionality. PLC transceivers provide a cost effective solution to the adding Ethernet capabilities or Ethernet-based subsystems to existing aircraft.
    • Combining a Reed-Solomon Block Code with a Blind Equalizer: Synchronization and Bit Error Rate Performance

      Skrzypczak, Alexandre; Blanc, Grégory; Le Bournault, Tangi; Zodiac Data Systems (International Foundation for Telemetering, 2015-10)
      The performance of telemetry systems may be strongly affected by diverse sources of perturbations. Among them, multipath channels and transmission noise are the most critical. While the effects due to the multipath channels can be attenuated thanks to equalization, the effects of the noise are limited if forward error correction is used. This paper first proves that the combination of blind equalization and forward error correction can strongly improve bit error rates. The other objective of the paper is to show that reasonably powerful codes like Reed-Solomon codes are sufficient to enable quasi-error free transmissions in a large majority of propagation channel scenarios.
    • Advanced Telemetry Tracking System for High Dynamic Targets

      Minschwaner, Nathan; Leide, Nelson Paiva Oliveira; Viasat, Inc.; IPEV-EPD (International Foundation for Telemetering, 2015-10)
      A new advanced 2.4 meter telemetry tracking antenna system allows for successful autotracking of high dynamic targets. The system is designed to work at C, S, and L bands. One of these systems at L/S-band was recently implemented and tested in the field. The testing included tracking aircraft during maneuvers such as rolls, spins, and antenna tower fly-by at high rates of speed. This paper examines test results and some of the features of the new system that allow for continuous tracking.
    • An On-Board Instrumentation System for High-Rate Medium Caliber Projectiles

      Bukowski, Edward; Don, Michael; Grzybowski, David; Harkins, Thomas; Aberdeen Proving Ground (International Foundation for Telemetering, 2015-10)
      The U.S. Army Research Laboratory developed an on-board telemetry instrumentation system to obtain measurements of the in-flight dynamics of medium caliber projectiles. The small size, high launch acceleration, and extremely high spin rates of these projectiles created many design challenges. Particularly challenging were the high spin rates, necessitating the development of a data compression scheme for solar sensors. Flight tests successfully captured data for spin rates exceeding 1000 Hertz (1 kHz).
    • 3D Printed Antennas for Wireless Communication

      Marcellin, Michael W.; Xin, Hao; Johnson, Brent; Madrid, Colin; Yiin, Kevin; Wang, Hanwen; Li, Chengxi; Tan, Xizhi; University of Arizona (International Foundation for Telemetering, 2015-10)
      This paper describes the details of design and critical analysis of the process of 3D printing antennas for wireless communications applications. The subjective testing methods utilized were chosen specifically based on project scope and researcher capability. Our results indicate that more work is necessary in this field but that the basic idea is feasible.
    • Smart Radio Control System (For Flight Test Centers)

      Rubio, Pedro; Alvarez, Jesus; Airbus D&S (International Foundation for Telemetering, 2015-10)
      Among the rich infrastructure of a Telemetry/Ground Station Center dwells the subset dedicated to radio communications. Radios are mainly used to communicate with the aircraft under test in order to give guidance and feedback from ground specialists. Sometimes, however, radios themselves become the subject of the test, requiring a full set of them with all their features and capabilities (Military Modes, HF ALE, SELCAL, etc). Remote control (and audio routing) of these radios is a critical as infrastructures scale over tens of radios, distributed amid different test centers separated by hundreds of kilometers. Addition of a remote touch user interface, MIL COMSEC and TRANSEC modes, automatic audio routing, together with a maintenance free requirement, makes the whole issue far more difficult to manage. Airbus Defense & Space has developed a Smart Radio Control System allowing to profit from those advantages and more benefits: *Intuitive Touch UI *Automatic Audio Routing *Distributed infrastructure (network based) *Autonomous and service free (no one, other than FTC needed to operate it) *Heterogeneous (any radio can be controlled by creating a plug & play library) *Special Modes support (COMSEC, TRANSEC, HF ALE, and SELCAL) Future additions will include, amongst others, VoIP integration and tablet use.
    • A Development of Real Time Video Compression Module Based on Embedded Motion JPEG 2000

      Park, Min Jee; Yu, Jae Taeg; Hyun, Myung Han; Ra, Sung Woong; Agency for Defense Development; Chungnam National University (International Foundation for Telemetering, 2015-10)
      In this paper, we develop a miniaturized real time video compression module (VCM) based on embedded motion JPEG 2000 using ADV212 and FPGA. We consider layout of components, values of damping resistors, and lengths of the pattern lines for optimal hardware design. For software design, we consider compression steps to monitor the status of the system and make the system robust. The weight of the developed VCM is approximately 4 times lighter than the previous development. Furthermore, experimental results show that the PSNR is increased about 3dB and the compression processing time is approximately 2 times faster than the previous development.
    • Flight Path Simulation in LabVIEW using LDAR

      Dean, Richard; Moazzami, Farzad; Giri, Deepak; Morgan State University (International Foundation for Telemetering, 2015-10)
      This paper compares the results of the MATLAB flight path simulation earlier with the LabVIEW software defined radio module which is being developed at Morgan State University in collaboration with Georgia Tech. Research Institute under the Link Dependent Adaptive Radio (LDAR) project. In LDAR, the communication parameters such as modulation size and coding rate are updated based on the channel condition. In this simulation QAM size is updated based on the channel throughput in LabVIEW and a flight path using real aeronautical channels is simulated.
    • Computer Vision Analysis for Vehicular Safety Applications

      Wang, Yuan-Fang; University of California (International Foundation for Telemetering, 2015-10)
      In this paper, we present our research on using computer-vision analysis for vehicular safety applications. Our research has potential applications for both autonomous vehicles and connected vehicles. In particular, for connected vehicles, we propose three image analysis algorithms that enhance the quality of a vehicle's on-board video before inter-vehicular information exchange takes place. For autonomous vehicles, we are investigating a visual analysis scheme for collision avoidance during back up and an algorithm for automated 3D map building. These algorithms are relevant to the telemetering domain as they involve determining the relative pose between a vehicle and other vehicles on the road, or between a vehicle and its 3D driving environment, or between a vehicle and obstacles surrounding the vehicle.
    • An Object-Oriented Interface for Telemetry and Control of a Mars Rover

      Kosbar, Kurt; Reed, Joshua; Missouri University of Science and Technology (International Foundation for Telemetering, 2015-10)
      An application has been developed to remotely control a vehicle and display telemetry returned by the vehicle through a graphical user interface. The vehicle will compete in the University Rover Challenge hosted by the Mars Society. The software is responsible for asynchronously communicating to the remote system with a custom protocol over a wireless TCP/IP connection, handling user input from a team of human controllers, and processing data received from the rover and displaying it on the screen. A strong emphasis was put on keeping an object-oriented design throughout the project. It is built around the Model-View-ViewModel design pattern. The software was constructed using the C# and XAML languages with the Microsoft .NET framework.
    • Passive Acoustic Sensing for the Assessment of Knee Conditions

      Lee, Hua; Radzicki, Vincent; Matsuura, Koki; University of California, Santa Barbara (International Foundation for Telemetering, 2015-10)
      Early detection and diagnosis of knee related health disease is critical in mitigating the long term health risks of such ailments. Passive acoustic sensing is an under-utilized monitoring system that can be used in the assessment and potential diagnosis of knee health that has many potential benefits when compared to current medical technology. Developing accurate acoustic models and procedures for analyzing acoustic sensor data in these applications is of great importance. This paper presents the design and development of passive acoustic sensing system for characterizing knees along with data analysis techniques towards this end.
    • Detection and Imaging of Micro-Periodic Motion with FMCW Sensing Systems

      Lee, Hua; Radzicki, Vincent R.; University of California, Santa Barbara (International Foundation for Telemetering, 2015-10)
      Motion estimation is a problem that is encountered in a diverse range of technical fields. This paper demonstrates the development of a solution to the motion estimation problem in the context of imaging systems. First the general case of motion estimation is outlined followed by the special case of micro-periodic motion. The design of an FMCW microwave imaging system optimized for micro-periodic motion is then presented along with experiments and results that support the theory.
    • Wireless Body Area Network for Monitoring Human Kinetics

      Kosbar, Kurt; Pletta, Andy; Timmons, Adam; Abbeg, Tom; McBeth, Thomas; Missouri University of Science and Technology (International Foundation for Telemetering, 2015-10)
      This paper describes a project to implement a body area network to monitor the movements of a human subject. The sensor nodes can measure six degrees of movement by using a three axis accelerometer and three axis gyroscope. The data is transmitted wirelessly from the sensors to a wearable microcontroller. The microcontroller interfaces with a computer application that allows a user to easily analyze and interpret the stored data.
    • International Telemetering Conference Proceedings, Volume 51 (2015)

      International Foundation for Telemetering, 2015-10