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-First Annual International Telemetering Conference and Technical Exhibition, October 26-29, 2015. 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

  • Telemetry System Architecture for a Solar Car

    Walter, Eric; Glover, Nicholas; Cureton, Jesse; Kosbar, Kurt; Missouri University of Science and Technology (International Foundation for Telemetering, 2015-10)
    This paper discusses the telemetry system used to monitor the performance of a solar-powered vehicle during testing and competitions. Car-side systems collect and transmit data onboard over an ISO 11898 / CAN bus. A bridge then converts this data into TCP/IP packets, which are transmitted via Ethernet to a Wi-Fi access point. The data is distributed through an IEEE 802.11N 5GHz mesh network to provide real time data to remote computers running telemetry software. This software displays and logs data from the car, allowing team members to monitor the vehicle.
  • 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.
  • Autonomous Mapping Using Unmanned Aerial Systems

    Marcellin, Michael; Hibbs, Jeremy; Kibler, Travis; Odle, Jesse; Powers, Rachel; Schucker, Thomas; Warren, Alex; University of Arizona (International Foundation for Telemetering, 2015-10)
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 3D Printable Multilayer RF Integrated System

    Wicker, Ryan; MacDonald, Eric; Xin, Hao; Yu, Xiaoju; Liang, Min; Shemelya, Corey; University of Arizona; University of Texas at El Paso (International Foundation for Telemetering, 2015-10)
    In this work, a 3D-printable multilayer phased array system is designed to demonstrate the applicability of additive manufacturing technique combining dielectric and conductor processes at room temperature for RF systems. Phased array systems normally include feeding networks, antennas, and active components such as switches, phase shifters and amplifiers. To make the integrated system compact, the array system here uses multilayer structure that can fully utilize the 3D space. The vertical interconnections between layers are carefully designed to reduce the loss between layers. Simulated results show good impedance matching and high-directive scanning beam. This multilayer phased array will finally be 3D printed by integrating thermal / ultrasound wire mesh embedding method (for metal) and fused-deposition-modeling technique (for dielectric).
  • Four-Channel Ultrasonic Receiver

    Markus, Brian; Viselman, Daniel; Jia, Chen; University of Kansas (International Foundation for Telemetering, 2015-10)
    A four-channel ultrasonic receiver is implemented. All four channels utilize a traditional superheterodyne design. Each channel will be capable of receiving and downconverting signals with frequencies from 30 kHz to 50 kHz. The system is capable of receiving four different continuous wave (CW) ultrasonic signals simultaneously. One application for this multichannel ultrasonic receiver involves analyzing the digitally sampled signals from an array of four ultrasonic microphones to perform triangulation to obtain the receiver's position in three-dimensional space. The receiver has a programmable local oscillator, programmable amplifiers, and a customizable low-pass filter option. The customized printed circuit board connects as a daughter board to an Arduino Due. The analog-to-digital converter (ADC) of the Arduino Due can sample data from each channel through a USB interface.
  • Advances in the Development of Missile Telemetry Test Sets: Utilizing 3D Printing for Rapid Prototyping and Manufacturing

    Apalboym, Maxim; Kujiraoka, Scott; NAVAIR (International Foundation for Telemetering, 2015-10)
    Functionally testing missiles in the All Up Round (AUR), a configuration that consists of a complete system packaged in its flight worthy state, requires the use of test sets along with constituent conformal equipment for interfacing. During developmental testing, telemetry (TM) sections are integrated within an AUR missile. These test sets monitor TM unit performance while maintaining form, fit, and function; therefore, resulting in complete data confidence. Initiating TM functional tests permit a capability in verifying that TM sections have been integrated properly. Safety being a priority, in order to attenuate RF radiation leakage while providing repeatable test capabilities in the near-field, antenna couplers are fabricated as a shielding interface between the user and radiating source and a coupling interface between an AUR missile and the test set. Generally, antenna couplers are composed of metallic bodies which require machine shop fabrication. The process of getting machined parts can take up to several months which can delay delivery schedules. With the availability of 3D printing capabilities and methods in metalizing various materials, a novel approach to fabricating antenna couplers has been explored. The use of modeling Software Packages (Computer Aided Design and Electromagnetic Solvers) and additive printing play key roles in reducing the development cycle time while saving costs, decreasing weight, and sustaining performance. This paper will detail the efforts using 3D printing capabilities in the development and fabrication of an antenna coupler with several examples cited herein.
  • Efficient AOA Estimation Techniques for GPS Signal

    Hwang, Suk-seung; Shynk, John J.; Lee, Hua; Chosun University; University of California, Santa Barbara (International Foundation for Telemetering, 2015-10)
    Global Positioning System (GPS) interference signals are suppressed using angle-of-arrival (AOA) techniques, while at the same time the power of the GPS signal is enhanced. After estimating all AOAs from the received signal, we must determine which AOA corresponds to the GPS signal of interest, and in the presence of high-power interference signals. In this paper, we describe an algorithm for selecting the GPS AOA by first comparing all AOAs derived from the received signals before despreading. Although this approach has excellent performance, it has a high computational complexity. In order to overcome this drawback, we introduce a modification that yields an efficient GPS AOA estimation algorithm, which is based on a modified despreader and the constant modulus (CM) array cost function. The CM array is capable of selecting signals that have a constant modulus while rejecting non-CM interference signals. The modified despreader is the mechanism that allows this to be achieved, where unlike the interference signals, the GPS signal of interest maintains a constant modulus.
  • Limitation of the 2-Antennas Problem for Aircraft Telemetry by Using a Blind Equalizer

    Skrzypczak, Alexandre; Blanc, Grégory; Le Bournault, Tangi; Pierozak, Jean-Guy; Zodiac Data Systems (International Foundation for Telemetering, 2015-10)
    The emission of the telemetry signal is required over minimum two different antennas to keep the telemetry link available during a maneuver of a flying object. If nothing is made at the transmitter side, the telemetry link can be fully lost as both signals may have an opposite phase. We here propose a simple solution based on delay diversity to solve this problem. The basic idea is to introduce a delay between both emitted signals to guarantee a non-destructive signal recombination. We then exploit the ability of the blind equalizer developed by ZDS for the PCM/FM modulation to correctly equalize this signal and to recover the initial data. This solution does not require any modification of the on-board and floor set-ups except the introduction of a delay line between both transmitting antennas. It also does not need any pilot sequence and is natively robust to multipath perturbations.
  • 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.
  • Synchronized Data Transportation for Distributed Acquirement System Through Direct Ethernet Connection and TDM

    Wan, Zhongjie; Qi, Shengyuan; Song, Jian; Wang, Haijiao; China Flight Test Establishment; Beijing Zoweetech Ltd. (International Foundation for Telemetering, 2015-10)
    To use Ethernet is the most convenient way to set up a transportation network for a telemetry data acquirement system. However, due to its CSMA/CD (Carrier Sense Multiple Access and Collision Detection) mechanics, Ethernet cannot transport data synchronously. This paper analyzed important features of transportation in a distributed data acquirement system, and presents a resolve for synchronously transporting data in a distributed data acquirement system by using direct Ethernet connection and TDM (time division multiplexing) technique.
  • Semantic Validation of T&E XML Data

    Moskal, Jakub; Kokar, Mieczyslaw; Morgan, John; VIStology, Inc. (International Foundation for Telemetering, 2015-10)
    It is anticipated that XML will heavily dominate the next generation of telemetry systems. The syntax of XML-based languages can be constrained by a schema that describes the structure of valid documents. However, the schemas cannot express all dependencies between XML elements and attributes, both within a single document and across multiple documents. This prohibits the XML validation process from being fully automated with standard schema processors. This paper presents an approach that is based on the W3C Semantic Web technologies and allows different vendors and system integrators to independently develop their own semantic validation rules. The rules are equipped with powerful semantics, which allows for specification and validation of complex types of constraints. The approach is not specific to a particular T&E standard and is entirely standards-based.
  • One Approach for Transitioning the iNET Standards into the IRIG 106 Telemetry Standards

    Reinwald, Carl; CSC (International Foundation for Telemetering, 2015-10)
    This paper documents one proposed approach for transitioning the Integrated Network Enhanced Telemetry (iNET) Standards into the IRIG 106 Part 2 Telemetry Network Standards. Describing the iNET Standards in terms of the Transmission Control Protocol/Internet Protocol (TCP/IP) Model provides a solid foundation for the proposed IRIG 106 Part 2 chapter structure. The proposed approach incorporates an application-centric paradigm by emphasizing application-to-application communication. One change proposal augments the current Simple Network Management Protocol (SNMP) application protocol with a Hypertext Transfer Protocol (HTTP) application protocol that enables advanced data transfer features and other options. Another change proposal includes Data Channel enhancements resulting in a more harmonious relationship between statically and dynamically-defined Data Channels. This paper includes a high level transition plan for migrating towards this proposed approach for IRIG 106 Part 2.
  • 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.
  • 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.

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