• Next Generation Feature Roadmap for IP-Based Range Architectures

      Kovach, Bob; Superior Access Solutions, Inc. (International Foundation for Telemetering, 2015-10)
      The initial efforts that resulted in the migration of range application traffic to an IP infrastructure largely focused on the challenge of obtaining reliable transport for range application streams including telemetry and digital video via IP packet-based network technology. With the emergence of architectural elements that support robust Quality of Service, multicast routing, and redundant operation, these problems have largely been resolved, and a large number of ranges are now successfully utilizing IP-based network topology to implement their backbone transport infrastructure. The attention now turns to the need to provide supplemental features that provide enhanced functionality in addition to raw stream transport. These features include: *Stream monitoring and native test capability, usually called Service Assurance *Extended support for Ancillary Data / Metadata *Archive and Media Asset Management integration into the workflow *Temporal alignment of application streams This paper will describe a number of methods to implement these features utilizing an approach that leverages the features offered by IP-based technology, emphasizes the use of standards-based COTS implementations, and supports interworking between features.
    • 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.
    • 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.
    • Data Protection and Data Elimination

      Budd, Chris; SMART High Reliability Solutions (International Foundation for Telemetering, 2015-10)
      Data security is becoming increasingly important in all areas of storage. The news services frequently have stories about lost or stolen storage devices and the panic it causes. Data security in an SSD usually involves two components: data protection and data elimination. Data protection includes passwords to protect against unauthorized access and encryption to protect against recovering data from the flash chips. Data elimination includes erasing the encryption key and erasing the flash. Telemetry applications frequently add requirements such as write protection, external erase triggers, and overwriting the flash after the erase. This presentation will review these data security features.
    • The Challenges of Data Acquisition in Harsh Remote Places

      Buckley, Dave; Curtiss-Wright Corporation (International Foundation for Telemetering, 2015-10)
      In modern flight test installations there is a continuing trend to move the data acquisition closer to the sensors. As a consequence the data acquisition chassis needs to be mounted in locations that are small, inaccessible and subject to harsh environmental conditions. On top of this there are an increasing number of measurements required for each new flight test campaign. This paper discusses the challenges of designing a small lightweight data acquisition chassis which can provide hundreds of channels of measurement capability while operating in tight spaces which are exposed to fluids, high vibration and extremes of temperature. The paper suggests ways of designing and installing the data acquisition chassis in order to optimize the available installation space while mitigating the effects of the harsh environmental conditions.
    • Introducing C-Band Operations Using a Low Cost Test Platform

      Mueller, Guenter; Airbus Defence and Space (International Foundation for Telemetering, 2015-10)
      Changing from L/S-Band to C-Band requires not only new equipment. Even the characteristics of the new frequencies just as the new frequency environment are a challenge for the operations in this bands when changing from a well-known frequency environment to a unknown new one. This paper describes the way used at Airbus Defense and Space Flight Test Ground Station to get experience with new equipment and to learn more about the new environment. Repeatable and comparable tests allowed training for the operators and the optimization of the equipment and procedures with the new environment. Although many of the problems or features observed during the tests where expected in advance, but even unexpected results could be identified.
    • Estimation of Angle of Arrival with Two-Dimensional Circular and Nonuniform Arrays

      Lee, Hua; Radzicki, Vincent R.; Johnson, Melissa; University of California, Santa Barbara (International Foundation for Telemetering, 2015-10)
      Positioning systems tasked with performing geolocation of objects have grown in importance in recent years as the demand for accurate position and spatial data has increased. Parameter estimation of the angle of arrival is a common approach used in positioning systems that has had great success. This paper presents the design and development of a computationally efficient angle of arrival estimation technique that is reconfigurable for changing requirements that different applications may impose. The theory explaining the method is outlined, along with field experiments and simulations to provide validation for the effectiveness and accuracy of the approach.
    • 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.
    • The Performance Test of an Initial iNET-Like RF Network Using a Tethered Aerostat in Japan

      Tanaka, Toshihisa; Aoyama, Daiki; Ito, Sei; Kawasaki Heavy Industries, Ltd. (International Foundation for Telemetering, 2015-10)
      Through the use of early iNET-prototype IP Transceiver technology, Kawasaki Heavy Industries, Ltd. (KHI) has been able to communicate with flight test vehicles during a recent research program. This technology provides a two-way high-capacity communication that has not been achieved with conventional telemetry and can be used not only for flight testing, but also for rescue work. KHI has been authorized to use S-band IP Transceivers since last year in Japan, and various communication tests have been performed. This paper describes Japan's first simulation of an iNET RF network which incorporated testing that performed data backfill, voice communication and video transmission. A data backfilling test was performed using retransmit of lock-off data (which is lost as the aircraft maneuvers) on command from the ground station. Moreover, a tethered aerostat is considered a very useful communication relay platform in the event of a large-scale disaster which results in the destruction of infrastructure. Also, the silence of an aerostat can be very important for search and rescue work.
    • INCA Cubesat: A Design Analysis of the Telemetering System

      Burgett, Taylor; New Mexico State University (International Foundation for Telemetering, 2015-10)
      The goal of this project is maximize the performance of the telemetering system for the INCA cubesat mission using what we are learning in class to develop tests to figure out the optimal selection of frame scheme, data rate, and modulation technique based on the requirements of the mission. This project will help me learn about different modulation techniques and give me real world experience testing a telemetry system. I will evaluate my results through a comparison of the error rates for the different modulation schemes and do statistical analysis to show the reliability of the data. The results will be useful to any future mission that implements the same satellite communication system including future missions at NMSU.
    • Frequency Domain Equalizer for Aeronautical Telemetry

      Saquib, Mohammad; Rice, Michael; Afran, Md. Shah; The University of Texas at Dallas; Brigham Young University (International Foundation for Telemetering, 2015-10)
      This paper presents a frequency domain equalization (FDE) technique for aeronautical telemetry channels. The FDE has significantly lower computational complexity compared to its time-domain counterpart, however both are found to exhibit almost identical performance. A cyclic prefix is generally needed to implement the FDE. In this paper, we exploit the repetition of iNET preamble and ASM bits in place of cyclic prefix.
    • 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.
    • Packet-Based Best Source Selector and Other IP-Telemetry Tricks

      Newton, Todd A.; Abbott, Ben A.; Southwest Research Institute (International Foundation for Telemetering, 2015-10)
      IP-telemetry radios are being connected to existing ground networks, thereby integrating the air and ground. While this provides full connection to Test Article (TA) networks, the mobility of TAs and the transient nature of test missions leave the overall experience feeling less than "real" networks. We describe a toolset that extends the capabilities of integrated IP-telemetry and range networks through specialized routing techniques focused on mission-based data delivery needs. The toolset provides a configurable capability enabling packet-based best source selection, firewalling, multicasting, and QoS enforcement across the range on a per program basis. The building blocks of the toolset allow for the creation of virtualized network components that are mission-based rather than infrastructure and enables seamless network operation with network telemetry, giving mission personnel the ability to specialize the network for their needs without depending upon the range IT department.
    • A Brave New C Band Architecture

      Guadiana, Juan M.; Uhl, Brecken; Rigil Corporation; Scientific Value LLC (International Foundation for Telemetering, 2015-10)
      This paper looks at the migration paradox from a holistic perspective, revisits the Smarter Antenna concept and looks for synergetic solutions. The architecture presented also builds on the momentum of the relentless migration to network technology (that has already transformed telemetry data centers) and pushes it to the vehicle. The results are reduced costs and exciting new functionality, such as better situational awareness for mission conduct and range safety. Spatial and temporal domains are harnessed as aggressively as the frequency domain to enable denser spectral utilization and other exciting benefits. Imagine a Test Range no longer reliant on tracking systems (almost)!
    • An Evaluation System for Airplane's Power Supply

      Song, Jian; Luo, Ni; Cao, Liu; Xu, Min; Beijing Zoweetech Ltd. (International Foundation for Telemetering, 2015-10)
      Power supply is the most critical unit in an airplane. A defect in a power supply might lead to a crash. Therefore, it is very useful and important to monitor the status of the airplane's power supply during flight. This paper presents a real-time evaluation system constructed by a central process unit for processing and detecting defects and several remote units for acquiring parameters. Because of the huge amount of data acquired, a combination of Ethernet and time division multiplexing technique has been applied for constructing a 2.5Gbps synchronous data transportation network for the system.
    • JASON3, a Story of Telemetry and Telecommand Interference Handling

      Loisel, Céline; Zaouche, Gérard; Centre National d’Etudes Spatiales (International Foundation for Telemetering, 2015-10)
      This paper describes the methodology and the results of the interferences analysis that the JASON3 spacecraft has to deal with, as part of the PROTEUS platform series, sharing frequencies, modulation schemes and ground network.
    • A Comparison of Coherent Detectors for SOQPSK-TG

      Xingwen, Ding; Wantao, Zhai; Jianyong, Song; Ming, Chen; Beijing Research Institute of Telemetry (International Foundation for Telemetering, 2015-10)
      SOQPSK-TG is a highly bandwidth-efficient constant-envelope modulation so that it has been applied in airspace telemetry widely. We compare four types of coherent detectors for SOQPSK-TG, which are optimal detector, pulse truncation (PT) detector, standard OQPSK detector and modified OQPSK detector. The simulation and analysis results indicate that PT detector has the advantages of low complexity and good performance, so it has more practicality value.
    • 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.
    • Leveraging Behavioral Analytics Security Tools to Protect Telemetry Post Processing Environments

      Kalibjian, Jeff; Hewlett Packard (International Foundation for Telemetering, 2015-10)