ABOUT THE COLLECTION

The International Telemetering Conference/USA (ITC/USA) is dedicated to the promotion and stimulation of technical growth in telemetering and its allied arts and sciences. It is the premier annual forum and technical exhibition providing telemetry specific short courses, technical papers from professionals and students, and exhibits of the industry’s leading companies. ITC/USA is sponsored by the International Foundation for Telemetering (IFT), a non-profit corporation dedicated to serving the technical and professional interests of the telemetering community.

This collection contains the proceedings of The Fifty-Fifth Annual International Telemetering Conference and Technical Exhibition, Cultivating the Next Generation of Range Engineers, October 21-24, 2019. The conference, sponsored by the International Foundation for Telemetering, was held at Bally's Hotel & Convention Center, Las Vegas, NV.


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Recent Submissions

  • The Good, The Bad, and The Non-Circular Signals

    Bose, Tamal; Tsang, Stephanie D.; Samuel, Al; Univ Arizona, Dept Electrical and Computer Engineering (International Foundation for Telemetering, 2019-10)
    Second-order (SO) non-circularity is a statistical property that is used to classify signals. Signals with SO non-circularity are extensively used in communication and radar systems. The SO non-circularity property is generally useful in the application of array processing techniques for extending antenna apertures. Exploiting this non-circularity property for a multi-faceted set of communication-type and radar-type signals is the objective of this study. For a given type of signal, the circularity quotient and its properties are tested and evaluated in terms of parameters such as the modulus of its phase, complex covariance, pseudo-variance, the angle orientation of the ellipse, its eccentricity, and other relevant properties are calculated. A geometrical interpretation for the circularity quotient and the correlation coeficient is used to derive the bounds for circularity.
  • DOPPLER POWER SPECTRA FROM VEHICLE-TO-EVERYTHING PROPAGATION EXPERIMENTS

    Rice, Michael; Harrison, Willie K.; Norman, Kalin; Jensen, Benjamin; Brigham Young University, Dept Electrical and Computer Engineering (International Foundation for Telemetering, 2019-10)
    This paper presents the results of vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I) propagation experiments. The experimental results are summarized by Doppler power spectra. Our measurements indicate the need for a dynamic system that can handle the variable channels experienced in vehicle-to-everything communications.
  • JFLUTTER REAL TIME FLUTTER ANALYSIS IN FLIGHT TEST

    Rubio, Pedro; Coll, Francisca; AIRBUS DEFENCE & SPACE Flight Test (International Foundation for Telemetering, 2019-10)
    During the development of an aircraft it is mandatory to demonstrate that the aircraft is free from flutter within its operational flight envelope. This piece showcases JFlutter, a flutter analysis tool developed within Airbus Defence & Space Flight Test Analysis Tools. JFlutter allows the analysis of this phenomenon in real time monitoring and post flight mode. Using the FxS dataserver as data provider, a reliable data gathering mechanism has been used for this critical tool. As flutter means aero elastic instability, potentially dangerous, flight safety becomes a main requirement. For safety reasons and in order to reduce overall test program duration it is necessary to check predicted frequencies and damping in real time / monitoring.
  • HIGH-PERFORMANCE EXTENSIBLE SOQPSK (E-SOQPSK) MODULATION WAVEFORMS FOR AERONAUTICAL MOBILE TELEMETRY COMMUNICATIONS

    Lu, Cheng Y.; Argula, Rajeev; Sasvari, Gyorgy; Cook, Paul; Teletronics a Curtiss-Wright Company (International Foundation for Telemetering, 2019-10)
    To utilize the resilience to multipath and rapidly varying Doppler shifts offered by a multicarrier (MC) Orthogonal Frequency Division Multiplexed (OFDM) modulation waveform, and the high transmitter power efficiency offered by a single carrier (SC) Shaped Offset Quadrature Phase Shift Keying (SOQPSK) modulation waveform, we propose a novel Extensible Shaped Offset Quadrature Phase Shift Keying (E-SOQPSK) modulation waveform. E-SOQPSK is an OFDM structured single carrier modulation waveform, configurable to include OQPSK, SOQPSK, or mQAM. Preliminary laboratory results confirmed its low Peak-to-Average Power ratio (PAPR) and high spectrum efficiency. Preliminary simulations demonstrated multipath resilience of ESOQPSK waveform by utilizing OFDM structure based Frequency-Domain equalization at receiver.
  • APSK SYMBOL TIMING AND CARRIER PHASE SYNCHRONIZATION ON AN FPGA IN A C-BAND TELEMETRY RECEIVER

    Perrins, Erik; Baxter, Jason; Univ Kansas, Dept Electrical Engineering and Computer Science (International Foundation for Telemetering, 2019-10)
    This paper presents the implementation of a standard PLL-based timing and phase synchronization system on hardware usingan FPGA. The synchronization system is shown to successfully recover a 16-APSK signal despite off sets in phase and frequency between the transmitter and receiver local oscillators. Furthermore, it is shown that system performance, in terms of symbol times required to achieve lock, is comparable to double-precision floating point simulations despite using fixed point numbers with as few as 5 fractional bits for most computations.
  • APPLICATIONS OF AUTONOMOUS NAVIGATION IN NEXT-GENERATION MARS ROVERS

    Kosbar, Kurt; Dlouhy, Sarah; Arneson, Ethan; Missouri University of Science and Technology (International Foundation for Telemetering, 2019-10)
    This paper describes a module used to provide autonomous navigation and obstacle avoidance to a teleoperated prototype Mars rover designed to compete in the 2019 University Rover Challenge. For the competition’s Autonomous Traversal task, the rover must be capable of traversing difficult desert terrain in search of visual waypoints. Our design uses a custom Navigation Board (NavBoard), a mobile robotics computer, and a sensor capable of producing a dense point cloud. NavBoard provides quaternion-based orientation data, distance measurements from a 1D LiDAR system, and GPS data over ethernet to a mobile robotics computer. This computer derives a 3D point cloud from a three-headed collinear stereoscopic camera then processes that data along with the data from NavBoard to determine the correct action to navigate through sparsely mapped terrain.
  • VALIDATION PROTOCOL - THE MISSING PUZZLE PIECE

    Moskal, Jakub; Whittington, Austin; Morgan, Jon; Kokar, Mitch; Abbott, Ben; VIStology Inc; Southwest Research Institute; Edwards AFB (International Foundation for Telemetering, 2019-10)
    In multi-vendor T&E systems, a single hardware vendor cannot anticipate the dependencies on the settings from hardware manufactured by other vendors, or the systemic constraints that are specific to a particular customer. The T&E community has recognized the fact that MDL and TMATS XML are not sufficient to addresst his problem alone, and that there is a need for a separate, constraints language. Constraints written in such a language can be validated by a third party validation engine, without relying on any particular vendor’s software. To this end, we developed the concept of TACL, a candidate for the standard constraint language, and demonstrated it with a reference implementation of a TACL engine integrated with the iNET System Manager. In this paper, we argue that this integration should be standardized in the form of a Validation Protocol in order to turn the existing system into a loosely-coupled, standards-based architecture.
  • Intelligent Monitoring Technology of Flight Test Based on Automatic Identification of Test Points

    Shenghu, Liu; Zhe, Yang; Bing, Ye; Chinese Flight Test Establishment (International Foundation for Telemetering, 2019-10)
    As the smallest component unit of the flight test task, test point defines the tasks and requirements to be completed by the test aircraft, which is the main basis for the flight effect evaluation. This article through in-depth analysis parameters variation characteristics of the testing aircraft in different test points, combined with the prior knowledge that the domain experts artificial recognize test points, extraction the key parameters of influencing test point identification, and their change rule. We constructed the knowledge base for test point identification, designed test point automatic identification algorithm. Combined with the flight test real-time task evaluation technology, we developed the real-time monitoring system for flight test based on the test point automatic identification and intelligent evaluation. It realized the change from the "intelligent security monitoring" to "intelligent task monitoring", and effectively improve the flight efficiency of the test aircraft.
  • Latest Development Status on the Commercial derivative aircraft Based Instrumentation Telemetry System (CBITS) Program

    Roudebush, J. Kyle; Hernandez, Jose; Kujiraoka, Scott; NAVAIR-Point Mugu; GBL Systems (International Foundation for Telemetering, 2019-10)
    The Commercial derivative aircraft Based Instrumentation Telemetry System (CBITS) project will provide an advanced airborne telemetry system and capability to support the test and evaluation (T&E) of current and future military weapons and defensive systems. In conjunction with the Range Support Aircraft (RSA) contracts, the CBITS project will provide an autonomous airborne T&E asset capable of supporting Major Range and Test Facility Base (MRTFB) government ranges and open-ocean testing worldwide. The project will develop an improved S-Band airborne telemetry (TM) capability and a new L- and C-Band telemetry capability as a result of frequency spectrum selloff issues. These improved telemetry capabilities, along with the existing airborne Flight Termination System/Command Destruct (FTS/CD) capability, existing radar for Range Surveillance (RS) and Range Clearance (RC), and range unique augmenting communication systems will be integrated into a Gulfstream G550 Airborne Early Warning (AEW) RSA which will be replacing the current NP-3D Remote Area Safety Aircraft (RASA). This paper will discuss the latest developmental status of the CBITS project.
  • A SYSTEMS ENGINEERING APPROACH TO MASTER MEASURAND LISTS AND THEIR METADATA

    Wells, Billy W., Jr.; Northrop Grumman, Corp. (International Foundation for Telemetering, 2019-10)
    A systems engineering approach to master measurand lists allows the use of metadata to improve data organization and management. As data acquisition systems become more complex, the management of sensors and their measurands must also advance. Traditional tabulated measurand lists of several hundred measurands are typically generated from email or verbal requests. Modern data acquisition systems with thousands of measurands are more complex than ever, causing these tabulated spreadsheets to become unwieldy and unmanageable. Modern data structures can easily organize and archive these lists through measurand metadata. By aligning the requirements of the measurand database with data acquisition system requirements, designers can ensure their data acquisition system is within constraints such as bandwidth, storage capacity, power consumption, size, and weight.
  • DATA COLLECTION AND ANALYSIS TECHNIQUES FOR SOLAR CAR TELEMETRY DATA

    Rouse, Michael; Sauer, Miranda; Kosbar, Kurt; Missouri University of Science and Technology, Dept Electrical and Computer Engineering (International Foundation for Telemetering, 2019-10)
    Data collected from a solar car is monitored in real-time, which allows for intelligent decision making, efficient debugging, and high-quality testing for solar car teams. This paper compares three databases (MySQL, PostgreSQL, and MongoDB) to determine the optimal database system that should be used at solar car competitions. Each database system was tested using simulated solar car data to measure read and write speeds, and quality of performance on a low-power computer. Data were analyzed and displayed with custom interfaces to improve the user experience at solar car competitions.
  • Design of Airborne Real-time Monitoring System for Vibration Signal of Large Civil Aircraft

    Jiayi, Liang; COMAC Flight Test Center, Instrumentation Dept (International Foundation for Telemetering, 2019-10)
    The high frequency vibration signal can effectively reflect the structural strength of aircraft during flight test. In order to meet the need of real-time monitoring of vibration parameters of a large civil airliner, an airborne real-time monitoring system for vibration signals is designed and developed. Development of airborne real-time monitoring software for high-frequency signals was based on C#. The software received and analyzed the network data of the airborne acquisition system, processed the time domain signals by FFT and power spectrum transformation, and realized the graphical display. The software can provide a strong support for the monitoring person to know the status of the aircraft in time.
  • LTE-BASED AERONAUTICAL MOBILE TELEMETRY - LAB AND FIELD TEST EXPERIMENTS

    Beck, Eric; Erramilli, Shobha; Habiby, Sarry; Johnson, William; Kogiantis, Achilles; Maung, Nan; Rege, Kiran; Sayeed, Zulfiquar; Triolo, Anthony; Young, Jeffrey; et al. (International Foundation for Telemetering, 2019-10)
    Aeronautical mobile telemetry (AMT) based on 3GPP’s LTE standard is implemented in a proof-of-concept system. The solution tackles the very high Doppler shifts expected in flight tests using an appliqué that can be inserted between the transmit/receive ports of the Test Article (TA) and the antennas. This appliqué estimates the Doppler shift and proactively compensates for it on the uplink signal being transmitted by the TA. The overall system has been tested under different operational conditions in a laboratory setup as well as in the field. In the laboratory setup, the desired operating conditions are created with a set of Software-Defined-Radio-based channel emulators coupled with a computer to control their behavior. In order to carry out field tests, an operational LTE network has been created at Edwards Air Force Base (EAFB) with two base stations, backhaul links, and a core network. In this paper, we provide descriptions of both laboratory and field test setups as well as the results of several tests that have been carried out to date. The results of lab and field tests lend strong support to the viability of this AMT solution.
  • DESIGN AND RESEARCH OF REAL-TIME MONITORING PROGRAM DEVELOPMENT SYSTEM FOR CIVIL AIRCRAFT FLIGHT TEST DATA BASED ON WPF

    Mao, Wei; Feng, Can; Liu, Tao; Wang, Feng; Liang, Jiayi; Flight Test Center of the COMAC, Instrumentation Dept (International Foundation for Telemetering, 2019-10)
    The real-time monitoring program offlight test data is an indispensable and important supporting tool in the flight test of large civil aircraft. With the continuous deepening of the networked test system, a large number of complex flight test parameters pose a huge challenge for the development of monitoring programs. Based on the WPF platform, this paper uses XAML files, reflection and DataBinding to design a system for developing real-time monitoring programs for flight test data. The system realizes the rapid integration and management of the monitoring program by dragging and displaying the control, shortening the preparation cycle in the past few weeks to several hours; when the system is running, the three-layer architecture can drive hundreds of monitoring terminals in real time, which is the domestic large-scale passenger aircraft C919 aircraft. The first flight and forensic flight test provided technical support.
  • WHY ARE WE HATIN’ ON ARTM CPM?

    Temple, Kip; Air Force Test Center, Edwards AFB (International Foundation for Telemetering, 2019-10)
    Why hasn’t the Aeronautical Mobile Telemetry community adopted IRIG 106 compliant ARTM CPM as their preferred waveform for the transmission of telemetry data? Telemetry receivers in the market place today exhibit gains in detection efficiency and resynchronization speed that far exceed products of just a few years ago. Past papers have shown the link performance comparison between the new waveform standard SOQPSK-TG and ARTM CPM has narrowed since ARTM CPM was first standardized. This paper will present the latest performance comparison between these two waveforms during a controlled test throughout various flight conditions. The testing is presented and performance comparisons are made between the waveforms. This comparison will use traditional methods combined with several new performance metrics presented in this paper. To conclude, Link Availability, the measure of overall link performance is presented illustrating how closely these waveforms perform.
  • CONTROL FAILURES IN AN UNMANNED AERIAL SYSTEM AND THE POTENTIAL FOR STATELESS CONTROL

    Marcellin, Michael; Norland, Kyle; Univ Arizona, Dept Electrical and Computer Engineering (International Foundation for Telemetering, 2019-10)
    To participate in the 2019 SUAS competition, an Unmanned Aerial System (UAS), was built. Unfortunately, several critical failures occurred, including an unwanted circling behavior, and an unnecessary self-crash. The analysis of both behaviors revealed surface level errors in the scripts and devices that were used, but also a deeper flaw in the architecture of state based behaviors and conditional state transitions. To address these failures, an alternative architecture based around stateless controls was designed and tested. It successfully resolved the issues, and seems to hold promise as an alternative control system architecture, especially in non-linear environments.
  • CHANNEL ESTIMATION USING GAUSSIAN PROCESS REGRESSION

    Kim, Taejoon; Perrins, Erik; Simeon, Richard; Univ Kansas, Dept Electrical Engineering and Computer Science (International Foundation for Telemetering, 2019-10)
    Gaussian process (GP) regression can be used in the interpolation of observed periodic channel estimates in OFDM transmission systems over both time and frequency in small-scale fading environments. Previous GP regression studies used the popular radial basis function as the GP kernel. In this study, we examine the performance of GP regression using a Bessel kernel with a semi-static hyperparameter vector. Results show that GP regression using the Bessel kernel outperforms the radial basis kernel, as well as traditional interpolation methods such as cubic spline and FIR interpolation, especially when training symbols are spaced far apart in time with respect to the channel coherence time.
  • ANALYSIS OF INERTIAL MEASUREMENT DATA FROM A MODEL ROCKET PAYLOAD

    Long, David G.; Francis, Benjamin; Brigham Young University, Dept Electrical and Computer Engineering (International Foundation for Telemetering, 2019-10)
    As part of a student-educational experience in telemetry, beginning undergraduates build, program, and test small payloads flown in model rockets. These payloads, nicknamed “femtosats,” collect and transmit real time telemetry on the rocket’s performance. The femtosats measure the inertial motions of the model rocket, providing info to extract the flight path. The individually student-designed femtosat circuit board includes a simple inertial measurement sensor that collects acceleration data in the form of x, y, z acceleration vectors which are transmitted in real-time to a radio ground station. The focus of this paper is the collection and analysis of the data from the telemetered inertial measurement sensor and how it can be interpreted and applied in simple model rocket motion analysis.
  • LIDAR COLLISION AVOIDANCE SYSTEM WITH AUDIO FEEDBACK FOR VISUALLY IMPARIED INDIVIDUALS

    Lee, Hua; Maravilla, Julian; Shimada, Haruka; Univ California Santa Barbara, Dept Electrical and Computer Engineering (International Foundation for Telemetering, 2019-10)
    In this paper, we present the 4th-generation, light-weight low-power collision avoidance system. For this new version, the ultrasound transmitter of the data-acquisition component is replaced by a Lidar to avoid multi-paths in complex environments. The estimate of the target range is quantized into a frequency bin and represented by acoustic waveforms within the human hearing range. The bearing angle of the target is utilized to produce the temporal offset between the twin channels of the corresponding acoustic waveforms. This wearable and hearable device is designed for real-time navigation for the blind.

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