• 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.

      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.

      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.

      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.

      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.

      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.

      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.

      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.

      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.

      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.

      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.

      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.

      Borah, Deva K.; Curry, Elam; New Mexico State University (International Foundation for Telemetering, 2016-11)
      Visible light communication (VLC) is emerging as a complementary technology to radio frequency communication. Some of the benefits of VLC include reusable bandwidth, security and high potential data rates. VLC can also be used in user positioning. For both communication and positioning systems, knowledge of the VLC channel parameters is usually needed. This paper investigates the estimation of the light-emitting diode (LED) parameters and user positions. The performance of the proposed estimation technique is numerically studied. Cram´er Rao lower bound (CRLB) results are derived and compared with the results obtained from the proposed maximum likelihood estimator. The effect of channel estimation on overall communication performance in terms of symbol error rate (SER) is also studied. The SER results using the estimated channel closely match with known channel results.

      Ito, Sei; Honda, Takeshi; Tanaka, Toshihisa; Aoyama, Daiki; Kawasaki Heavy Industries, Ltd. (International Foundation for Telemetering, 2016-11)
      Through the use of early iNET-prototype IP Transceiver technology, Kawasaki Heavy Industries, Ltd. (KHI) has been able to communicate with a flight test vehicle. This technology provides a two-way high-capacity communication that has not been achieved with conventional telemetry. KHI has been authorized to use S-band IP Transceivers since 2014 in Japan. Then various communication tests have been performed. Last year we presented the result of the performance test of initial iNET-like RF network using a tethered aerostat at ITC. As the next phase, we have a plan of the test using a helicopter. The test is going to be conducted in September. We will present the results at ITC. This paper describes plans of the test which includes improved data backfill techniques.

      Grubbs, Elmer A.; Northern Arizona University (International Foundation for Telemetering, 2016-11)
      This paper describes a new way to look at telemetry data. We examine a way to use virtual reality to evaluate and view data from a large collection of stored signals. Each individual signal will have limits associated with it that allow us to determine whether any part of the signal exceeds those limits and if so what part(s) of the waveform contain these abnormalities. A program using virtual reality to illustrate the technique has been written and will be demonstrated as part of the conference presentation.
    • Protecting Telemetry Data from Compromise Learning from the Mistakes of the Breached!

      Kalibjian, Jeff; Hewlett Packard Enterprise (International Foundation for Telemetering, 2016-11)
      Information has value and as such any network based computer (whether that network touches the Internet or not) has the potential to be hacked. Telemetry data is not immune to the threat. While there are a myriad of security sensor and analytics tools available for entities to deploy in order to protect their IT networks and assets on those networks, sometimes overlooked is also the wealth of research data available regarding the etiology of breaches that reveal fascinating, sometimes counterintuitive insights in the best ways to configure and integrate security applications to protect the organization. After reviewing the latest research data regarding computer and IT network compromise, security strategies implied in the research data appropriate to the security challenges encountered in the telemetry post processing environment will be thoroughly examined providing tangible methodologies that may be employed to better protect organization telemetry post processing and IT infrastructures.

      Rubio, Pedro; Fernandez, Francisco; Jimenez, Francisco; Airbus D&S (International Foundation for Telemetering, 2016-11)
      The purpose of this paper is to show the integration of the transmission gain values of a telemetry transmission antenna according to its relative position and integrate them in the C band link budget, in order to obtain an accuracy vision of the link. Once our C band link budget was fully performed to model our link and ready to work in real time with several received values (GPS position, roll, pitch and yaw) from the aircraft and other values from the Ground System (azimuth and elevation of the reception telemetry antenna), it was necessary to avoid a constant value of the transmitter antenna and estimate its values with better accuracy depending of the relative beam angles between the transmitter antenna and receiver antenna. Keeping in mind an aircraft is not a static telecommunication system it was necessary to have a real time value of the transmission gain. In this paper, we will show how to perform a real time link budget (C band).