• HOW TO MAKE A RUGGEDIZED SSD

      Budd, Chris; SMART High Reliability Solutions (International Foundation for Telemetering, 2016-11)
      SSDs are now commonplace in all types of computing from consumer laptops to enterprise storage systems. However, most of those SSDs would not survive in environments with extreme temperatures or high shock and vibration such as found in embedded and military systems. The problems in this space are more than just mechanical; they involve all aspects of the design including electrical and even firmware. A combination of all three engineering disciplines is needed to provide a robust ruggedized SSD product.
    • AN IMPROVED METHOD FOR SYNCHRONIZING MULTIPLE TM FILES

      Terrien, Ron; Endress, William; Raytheon Missile Systems (International Foundation for Telemetering, 2016-11)
      In a previous paper “Merging Multiple Telemetry Files From Widely Separated Sources For Improved Data Integrity” presented at the 2012 ITC\USA conference, a method for synchronizing TM files at the minor frame level was presented. This paper expands on that work by describing a method for synchronizing the files at the minor frame level faster and at the earliest frame possible using an internal counter. This method is also useful if the minor frames fall out of sync due to large dropouts.
    • AN INITIAL LOOK AT ADJACENT BAND INTERFERENCE BETWEEN AERONAUTICAL MOBILE TELEMETRY AND LONG-TERM EVOLUTION WIRELESS SERVICE

      Temple, Kip; Air Force Test Center (International Foundation for Telemetering, 2016-11)
      With National Telecommunications & Information Administration (NTIA) Advanced Wireless Services (AWS-3) auction of frequencies in the 1695-1710 MHz, 1755-1780MHz, and 2155- 2180MHz bands, users of the Aeronautical Mobile Telemetry (AMT) band from 1755- 1850MHz, known as Upper L-Band, could be greatly affected. This paper takes an initial look at how the 1755-1780MHz band will be used by the cellular carriers and presents some preliminary testing results of adjacent channel (band) interference that could be experienced by AMT users. This paper should be considered as the stepping off point for future interference discussions, required analysis, and further testing.
    • INKJET PRINTED ANTENNAS

      Marcellin, Michael; Xin, Hao; Hoskins, Charles; Zukova, Alisa; Turnblade, Joel; Shi, Yiming; Burrola, Santiago; Univ Arizona (International Foundation for Telemetering, 2016-11)
      The objective of this design project is to use inkjet printers with conductive ink to print functional antennas. The project is sponsored by the University of Arizona Electrical and Computer Engineering department. The project was completed with a Design of Experiments to determine the best method for printing a working antenna with different printers, inks, substrates, and printing methods. Conductive ink was used with standard inkjet printers to create a twodimensional antenna print, and the final results describe the best method for doing so. This technology is particularly useful because printed antennas may be produced quickly and inexpensively. Some potential applications include creating RFID tags, radio technology, mobile phones, and sensors for aircrafts. The printed antennas are particularly useful for some of these applications due to the size and flexibility of the print.
    • International Telemetering Conference Proceedings, Volume 52 (2016)

      International Foundation for Telemetering, 2016-11
    • The Killer App – Combining Embedded Processors, FPGAs and Smart Software

      Cooke, Alan; Curtiss-Wright (International Foundation for Telemetering, 2016-11)
      In this paper, the benefits and advantages of combining advanced embedded processing capabilities with an FPGA based approach within a Data Acquisition Unit (DAU) are discussed. The paper begins with a discussion of some of the services and functionality that such a system enables. Basic features such as system discovery, verification, configuration and upgrade are discussed in addition to other value added services such as continuous built in test (CBIT) and embedded real-time parameter quick-look. Finally, the paper discusses some advanced services that could be deployed to these systems such as emerging communication protocols, multimedia connectivity and discovery, and advanced Machine Learning based systems diagnostics.
    • A LESSON IN CONFLICT MITIGATION: INTEGRATING DIVERGENT DESIGN PHILOSOPHIES

      Kosbar, Kurt; Mormile, Melanie; Brinker, Katelyn R.; Marcolina, Rebecca C.; Missouri University of Science and Technology (International Foundation for Telemetering, 2016-11)
      The Mars Rover Design Team is dedicated to building a next generation rover that will one day assist astronauts in the field. The complexity of such a project increases when the two conflicting design philosophies of agile software development and traditional waterfall development must work in tandem in order to design and construct a rover within a year. Agile software development promotes the flexible, testdriven production of coinciding design aspects, while the waterfall design philosophy relies on thorough planning and rigid, sequential design schedules. The project managers of the team work to balance these opposing philosophies by fostering individual interests, allowing team members to select their own focus areas within a wide variety of mission critical tasks. This practice accelerates the design and construction of the rover and in turn creates the momentum needed to achieve a common goal while consolidating both agile software and traditional waterfall development.
    • A LIDAR-BASED NAVIGATION SYSTEM FOR THE VISUALLY IMPAIRED

      Kosbar, Kurt; Miles, Michael; Jetter, Joshua; Missouri University of Science and Technology, Department of Electrical and Computer Engineering (International Foundation for Telemetering, 2016-11)
      A common issue faced by people who are visually impaired is the difficulty of navigating and traveling through unfamiliar outdoor and indoor environments. The current state-of-the-art solutions to this problem consist of very expensive guide dogs and simple canes for obstacle detection. The team sought to develop a LIDAR-based navigation system with binaural auditory feedback that would allow the blind to navigate in unfamiliar environments and perform basic obstacle avoidance. Though basic auditory feedback relating to environmental obstacles was developed, further work is necessary to fine-tune the system and to determine the practicality of the device.
    • LIGHTWEIGHT REAL-TIME DISPLAY TOOL - USING OPEN SOURCE SOFTWARE

      Ferrill, Micha; Avionics Test & Analysis Corporation (International Foundation for Telemetering, 2016-11)
      This paper will present our work developing a lightweight real-time display tool using opensource technologies. Specifically, the effort involves receiving data broadcast over UDP (User Datagram Protocol) from an IRIG 106 Chapter 10 compliant recorder and then selecting specific data elements for display within a web browser. A small processing engine written in Python runs the data collection and processing while a small web server also written in Python provides data values for display. The web browser portion utilizes an open-source JavaScript plotting library to display values in real time.
    • LOCATING AND REMOVING A PREAMBLE/ASM SEQUENCE IN AERONAUTICAL TELEMETRY

      Rice, Michael; Hogstrom, Christopher; Nash, Christopher; Brigham Young University (International Foundation for Telemetering, 2016-11)
      This paper describes how to locate and remove periodically inserted preamble and ASM bit fields in the presence of the phase ambiguity caused by decision-directed PLLs used in most telemetry demodulators. The phase ambiguity is resolved by correlating rotated or delayed versions of the data with a stored template of the preamble and ASM bits. A finite state machine in conjunction with a FIFO is used to remove the preamble and ASM bits from the output bit stream.
    • Low Cost Unmanned Aircraft System for Autonomous Flight and Computer Vision Tasks

      Marcellin, Michael W.; Hung, David; Allred, Coby; Univ Arizona, Dept Elect & Comp Engn (International Foundation for Telemetering, 2016-11)
      The Arizona Autonomous Vehicles Club is participating in the 2016 AUVSI Student Unmanned Aerial Systems Competition which offers various challenges to be completed by a fully autonomous aerial vehicle. To complete various mission objectives, a low cost, rotary-wing platform was developed and deployed. The vehicle was assembled and upgraded for autonomous capability using commercially available components and open sourced software.
    • MARS-COLONIZATION SENSOR SYSTEM FOR SOIL ANALYSIS

      Kosbar, Kurt; Maruska, John; Schad, Judah; Missouri University of Science and Technology, Department of Electrical and Computer Engineering (International Foundation for Telemetering, 2016-11)
      This paper discusses a modular open source electronic soil analysis system embedded in a remote vehicle designed for use on a colonizationeffort Mars rover. The embedded system consists of a soil extraction drill sheath, a temperature and moisture array sensor sheath, a sample return bay specialized for RamanFluorescence spectrometry, and an Ethernet bridge radio for communication, all controlled through several microcontroller boards. A Windowsbased graphical engagement application provides real time control. A Linuxbased scripting application provides postprocessing, graphing, and statistical analysis. All software and electrical hardware has been made opensource for the public to build upon.
    • Minimum Euclidean Distance Algorithm for Indoor WiFi Received Signal Strength (RSS) Fingerprinting

      Moazzami, Farzad; Dean, Richard A.; Astatke, Yacob; Zegeye, Wondimu K.; Amsalu, Seifemichael B.; Morgan State University, Department of Electrical and Computer Engineering (International Foundation for Telemetering, 2016-11)
      While WiFi-based indoor localization is attractive, the need for a significant degree of pre-deployment effort is a key challenge. In this paper, indoor localization with no pre-deployment effort in an indoor space, such as an office building corridor, with WiFi coverage but no apriori knowledge of the placement of the access points(APs) is implemented for mobile devices. WiFi Received Signal Strength(RSS) in the considered environment is used to build radio maps using WiFi fingerprinting approach. Two architectures are developed based on this localization algorithm. The first one involves a client-server approach where the localization algorithm runs on the server whereas the second one is a standalone architecture and the algorithm runs on the SD card of the mobile device.
    • MULTI-SENSOR HEALTH PLATFORM WITH CLOUD ANALYSIS

      Saha, Dola; Doddapaneni, Purna; Wofford, Quincy; Maneth, Nicole; University of Kansas, Information and Telecommunication Technology Center (International Foundation for Telemetering, 2016-11)
      What could we learn from monitoring our body processes with various portable sensors and an unconstrained analysis platform? Physiological processes in the human body produce observable biosignals. These signals contain a wealth of information about the condition of the body, and its reaction to environmental factors. Our study harnesses 9 unique sensors, integrated by the eHealthSensor platform for Arduino, to transmit data to an Android device. The Android device contains a local PostgreSQL database, which synchronizes with the cloud. Using this platform, researchers can monitor a subjects biosignals as they ride a roller coaster or participate in exercise activities. Nurses can monitor the vitals of multiple patients remotely. Analytic, cloud based services, managed by healthcare providers, could ultimately enable automated diagnosis of medical conditions.
    • NEW APPROACHES TO THE IMPLEMENTATION OF EMBEDDED TELEMETRY PROCESSING SYSTEMS

      Eckman, Bill; Irvin, Dana; Lokshin, Kirill; Puri, Amit; Ingenicomm Inc. (International Foundation for Telemetering, 2016-11)
      The conventional architecture of modern telemetry and signal processing systems typically relies on some combination of specialized hardware and firmware components integrated with commercial rackmount computer platforms running off-the-shelf operating systems. The evolution of the modern system-on-a-chip (SoC) architecture, which tightly couples traditional field-programmable gate array (FPGA) elements with high-performance embedded microprocessor cores, offers an alternative to this conventional approach. When effectively utilized, the SoC approach can provide several advantages, including reduced system size and power, increased system security, and lower lifetime operating costs. This paper discusses the benefits offered by embedded SoC architectures for the implementation of satellite telemetry processing systems, and presents an example design that demonstrates advantages with respect to security, reliability, maintainability, footprint, and cost.
    • Noise Predictive Information Rate Estimation for TDMR Channels

      Bahrami, Mohsen; Vasic, Bane; Univ Arizona, Dept Elect & Comp Engn (International Foundation for Telemetering, 2016-11)
      In this paper, we use the forward recursion BCJR algorithm to estimate the symmetric information rate for Two Dimensional Magnetic Recording (TDMR) channels. In particular, we consider a TDMR read/write channel whose all components, including recording medium, write and readback processes are modeled in software. Since the primary source of noise in TDMR arises from irregularities in the recording medium and leads to highly colored and data-dependent jitter, the pattern dependent noise predictive (PDNP) algorithm is implemented to improve the accuracy and performance of SIR estimation. Furthermore, we study the performance gain of using the PDNP algorithm in SIR estimation through simulations over the Voronoi based media model for different TDMR channel configurations.
    • OFDM AND SOQPSK TRANSCEIVER HARDWARE IMPLEMENTATION WITH PRELIMINARY RESULTS

      Wang, Enkuang D.; Brothers, Timothy J.; Georgia Tech Research Institute (International Foundation for Telemetering, 2016-11)
      This paper presents a hardware implementation of a transceiver capable of both orthogonal frequency-division multiplexing (OFDM) and shaped-offset quadrature phase shift keying (SOQPSK) transmissions using a dataflow programming language. Based on the physical layer iNET standard, we introduce a transceiver implementation that utilizes both waveforms with low density parity check (LDPC) forward error correction (FEC) codes. This testbed is intended to test and enable an adaptive algorithm that uses both waveforms as its modulation schemes. As such, it has the ability to dynamically select various modulation parameters and coding rates. The hardware implementations are described and performance utilizations are presented.
    • ON FREQUENCY OFFSET COMPENSATION FOR EQUALIZED SOQPSK

      Rice, Michael; Ravert, Jeffrey; Brigham Young University (International Foundation for Telemetering, 2016-11)
      This paper describes the use of a phase lock loop (PLL) to compensate for and remove a residual frequency offset when using data-aided estimators to equalize SOQPSK-TG. The problems of multipath and residual frequency offset will be shown my example. An equalizer followed by a PLL will be shown to be a viable option to mitigate multipath and residual frequency offset by example.
    • AN OPEN, SCALABLE APPROACH TO EFFICIENT DATA PROCESSING

      Kilpatrick, Stephen; Westhart, Philip M; Abbott, Ben A.; Southwest Research Institute (International Foundation for Telemetering, 2016-11)
      The growth of network-based systems in flight test will present performance problems within the community. Legacy instrumentation systems are not capable of meeting the high-bandwidth, low latency data processing requirements of these next generation data acquisition systems. Ongoing research at Southwest Research Institute is exploring the use of a variety of commodity components, such as Graphics Processing Units (GPUs) and multicore Central Processing Units (CPUs), in ways that can be applied to both the small embedded components as well as the larger ground systems. This paper will explore an open, scalable Commercial-Off-The-Shelf (COTS) approach to bridge the gap and minimize changes to the legacy systems. Current results from this approach will be presented at the conference.
    • OPTIMIZATION OF SYMBOL DISTANCE METRIC IN DIRECTIONAL MODULATION SYSTEMS

      Borah, Deva K.; Christopher, Ryan M.; New Mexico State University, Department of Electrical and Computer Engineering (International Foundation for Telemetering, 2016-11)
      This paper investigates a directional modulation (DM) method that distorts the received symbol constellations along a set of undesired directions while maintaining an undistorted constellation in the direction of intended communications. The problem is formulated in terms of minimization of the symbol distance metrics along the undesired directions. An algorithm assigns a symbol pair to each undesired direction for symbol distance minimization. Constraints for good reception in the desired direction are also included. The method involves iterations between a quadratic minimization problem and an unbalanced transportation problem. Numerical results are presented to show the bit error rate (BER) benefits of the proposed method.