Dissertations / Theses on the topic 'Telemetry research'

International Telemetering Conference Proceedings / October 20-23, 2003 / Riviera Hotel and Convention Center, Las Vegas, Nevada<br>This paper describes the development of a compact mobile telemetry system using commercial-off-the-shelf components. The personal computer-based systems support microwave pulse code modulation and serial spread-spectrum radio modem telemetry. The mobile ground station provides data display and archiving of test activities, air-ground communications between experimenters and the flight test crew, and acts as a flight test Differential Global Positioning System base station. The success of the systems indicates that functional telemetry capabilities can be established for small flight test programs at modest cost.

ITC/USA 2005 Conference Proceedings / The Forty-First Annual International Telemetering Conference and Technical Exhibition / October 24-27, 2005 / Riviera Hotel & Convention Center, Las Vegas, Nevada<br>As part of the ongoing effort to increase the efficiency of telemetry, a research grant through the Air Force Office of Scientific Research (AFOSR) was initiated to look at the development of multi-band transmitters. During this research, ideas about improvements from dual antennae transmission were also pursued. The multi-band related work subsequently transitioned to a Small Business Innovation Research (SBIR) effort and a commercial product. The dual antennae research led to a Science and Technology/Test and Evaluation (S&T T&E) project and is currently being developed under the Central Test and Evaluation Investment Program (CTEIP). This paper overviews the technologies involved and the process of working a pure research effort through various cycles of development and funding.

International Telemetering Conference Proceedings / October 30-November 02, 1989 / Town & Country Hotel & Convention Center, San Diego, California<br>This Paper is based on results of radio signal propagation tests that are performed on sea and ground. Other test results also are referred. Practice of polarity diversity. space diversity and frequency diversity used for re-entry telemetry system is discussed briefly. The achieved effect and existing problems in using diversity technology is analyzed. Finally, the diversity technology is evaluated with respect to engineering.

International Telemetering Conference Proceedings / October 30-November 02, 1989 / Town & Country Hotel & Convention Center, San Diego, California<br>This Paper is based on results of radio signal propagation tests that are performed on sea and ground. Other test results also are referred. Practice of polarity diversity. space diversity and frequency diversity used for re-entry telemetry system is discussed briefly. The achieved effect and existing problems in using diversity technology is analyzed. Finally, the diversity technology is evaluated with respect to engineering.

International Telemetering Conference Proceedings / October 30-November 02, 1995 / Riviera Hotel, Las Vegas, Nevada<br>After briefly presenting the TRANSMED mission, the configuration of the Telemetry and Telecommand links is illustrated and the their dimensioning is analyzed. Both links operate at S-band with satellite grade standards. The system composition, the main equipment and the system growth potential are thereafter presented.

International Telemetering Conference Proceedings / October 18-21, 2004 / Town & Country Resort, San Diego, California<br>The content of this paper is putting forward an idea that applies the software radio technique to the subcarrier demodulation of frequency divided multiplexing telemetry system. Firstly, the article explains the basic thought and application of the software radio. It introduces the main function and the use of the programmable downconverter in HSP50214/ HSP50216. Secondly, it discusses the merit and shortcoming about the method of the subcarrier demodulation of frequency divided multiplexing telemetry system in common use. Finally, the article aims at ± 7.5% proportion bandwidth FM subcarrier channels that in common use in the military standard, introducing HSP50214/HSP50216 programmable downconverter in achievement of design and simulation result. The main problems in the design are discussed and a conclusion obtained.

International Telemetering Conference Proceedings / October 28-31, 1996 / Town and Country Hotel and Convention Center, San Diego, California<br>Lower operating budgets and reduced personnel are causing the operators of test ranges to consolidate their assets and seek ways to maximize their utilization. This paper presents the versatile approach used by the NASA Dryden Flight Test Facility located at Edwards Air Force Base to monitor, control and operate five of its diversely located telemetry systems from a central control room. It describes a new generation of multi-purpose antenna controllers which are currently being installed as part of this NASA upgrade program.

The Scintillation Prediction Observation Research Task (SPORT) is a joint United States of America (USA) and Brazil small satellite mission to address the further under-standing of the preconditions leading to equatorial plasma bubbles. Utah State University (USU) is supplying four instruments towards this SPORT mission. These four instruments will allow measurements of the electric field and plasma density in the ionosphere which will help understand what gives rise to plasma bubbles in the ionosphere. This thesis will discuss the command, control, and telemetry communications needed to operate the SPORT USU instruments. It will cover an overview of the instruments involved, how the instruments are controlled specifically, what commands were needed to run the instruments, what telemetry data was produced and how it was transmitted to the ground station, and how the data is made useful. The design process, challenges, and solutions to this system and project will also be discussed.

ITC/USA 2007 Conference Proceedings / The Forty-Third Annual International Telemetering Conference and Technical Exhibition / October 22-25, 2007 / Riviera Hotel & Convention Center, Las Vegas, Nevada<br>The Western Aeronautical Test Range (WATR) at the NASA Dryden Flight Research Center (DFRC) employs the WATR Integrated Next Generation System (WINGS) for the processing and display of aeronautical flight data. This report discusses the post-mission segment of the WINGS architecture. A team designed and implemented a system for the near- and long-term storage and distribution of mission data for flight projects at DFRC, providing the user with intelligent access to data. Discussed are the legacy system, an industry survey, system operational concept, high-level system features, and initial design efforts.

Thesis (MScEng)--Stellenbosch University, 2012.<br>ENGLISH ABSTRACT: This project targeted the development of a new tracking collar, trap telemetry system and supporting infrastructure, to aid researchers from the Cape Leopard Trust. Previously used collar products had all proven insu cient in some capacity and remote monitoring of trap sites was also required. Tracking collars are used to identify the movement patterns of the leopards and through the resulting research, assist in protecting this threatened species. In the development of the tracking collar and trap telemetry system, a high level system design was rst formulated, identifying major components that would be required. Alternative methods for implementation were then considered and the most optimal chosen. Two di erent modes of communication with the collar were envisioned and designed for. These would be used to transmit logged coordinates obtained from a GPS receiver back to researchers. A VHF terrestrial radio link was investigated, but an Iridium Satellite based solution was ultimately selected. An Iridium Satellite communications system was also used for transfer of trap state data. Ultimately, a working trap telemetry system was delivered for use by researchers. The tracking collar system had progressed to a working prototype, requiring miniaturisation and packaging before deployment. A possible packaging solution was also identi ed. The trap telemetry system, although displaying certain de ciencies, provided a capability previously unavailable to researchers. With further development, there is potential for the tracking collar to provide accurate satellite tracking and communications in a mass and price combination not previously available.<br>AFRIKAANSE OPSOMMING: Hierdie projek het as doel die ontwikkeling van 'n nuwe opsporingshalsband, 'n lokval telemetriese stelsel en die nodige ondersteunende infrastruktuur daarvoor. As hulpmiddels vir navorsers van Cape Leopard Trust. Geen van die halsband produkte wat tot nou toe gebruik is, het voldoen aan al die nodige behoeftes nie, en dit was ook nodig om die lokvalterreine van 'n afstand te kan monitor. Die opsporingshalsbande word gebruik om die bewegingspatrone van luiperds vas te stel en die navorsing wat daarop volg, help dat 'n bedreigde spesie bewaar word. Die ontwikkeling van die opsporingshalsband en lokval telemetriese stelsel het begin met die formulering van 'n ho evlak stelselontwerp waarin die hoofkomponente wat benodig sou wees ge denti seer is. Alternatiewe metodes van bewerkstelling is daarna oorweeg en die optimale hiervan is gekies. Twee verskillende metodes van kommunikasie met die halsband is voorgestel en ontwerp. Hierdie sou gebruik word om die vasgelegte koordinate wat van 'n GPS ontvanger verkry is, na navorsers terug te versend. 'n Terrestriale radioverbinding is ondersoek, maar 'n Iridium Satelliet-baseerde oplossing is uiteindelik verkies. 'n Iridium Satelliet kommunikasie stelsel is ook gebruik vir die oordrag van data aangaande die lokvaltoestand. Uitendelik is 'n werkende lokval telemetriese stelsel gelewer vir dir gebruik van navorsers. Die opsporingshalsband stelsel was nou 'n werkende prototipe, wat slegs verklein en toepaslik verpak moes word voor dit in gebruik geneem kon word. 'n Moontlike oplossing tot die verpakkingsprobleem is ook identi seer. Die lokval telemetriese stelsel, hoewel dit steeds tekorte toon, voorsien die navorsers van voorheen onbekombare inligting. Met verder ontwikkeling is daar potensiaal vir die opsporingshalsband om akkurate satellietopsporing en kommunikasie te voorsien in 'n kombinasie van laer massa, sowel as prys, soos nog nooit voorheen beskikbaar nie.

ITC/USA 2007 Conference Proceedings / The Forty-Third Annual International Telemetering Conference and Technical Exhibition / October 22-25, 2007 / Riviera Hotel & Convention Center, Las Vegas, Nevada<br>The Joint Advanced Missile Instrumentation (JAMI) Program’s main thrust has been the integration of Global Positioning System (GPS) tracking technology into the Department of Defense (DoD) Missile Test Ranges. This technology could be used for Time, Space, Position, and Information (TSPI), Flight Termination (FTS), or End Game Scoring purposes. However the Program’s main goal is to develop Proof-of-Concept components only. Transitioning Missile technology developed by the Government to Private Industry, so that it can be economically mass produced, has been quite a challenge. Traditionally, private industry has had to bid on proposals without much detailed information on how these components have been designed and fabricated. These unknown risks, Non-Recurring Engineering (NRE) and Missile Flight Qualification costs, routinely have significantly increased the price of these procurement contracts. In order so that the Fleet can economically utilize these components in the field, Cooperative Research and Development Agreements (CRADA) between the Government and Private Industry have been used to successfully transition Government developed technology to mass production. They can eliminate the NRE and flight qualification costs to provide for an economical and low risk method of providing the Fleet with the latest advances in GPS Tracking Technology. This paper will discuss how this is currently being accomplished in the development of a conformal wraparound instrumentation antenna for a five-inch diameter Missile Telemetry (TM) Section.

Human-caused habitat loss and fragmentation disrupt contiguous natural areas, leading to low population sizes and isolation of populations. To avoid increased risk of extinction, conservation networks are created: clusters of connected protected areas, largely based on expert-opinion. In landscape ecology, models are used to increase ecological realism in network design in order to avoid misguided management actions. However, increasing the ecological complexity requires detailed ecological data. In this dissertation, I investigate the challenges and opportunities encountered applying such models for conservation network design. With remote-sensing and species detection data, I modelled potential connectivity for white-lipped peccaries Tayassu pecari in Belize. This species is an endangered forest ungulate that requires large forest areas and has a short dispersal range. The model identifed alternative corridor routes and areas that were particularly important for connectivity conservation. Satellite tracking of an individual in southern Belize showed that animal activity, and presumably forest cover and terrain ruggedness hampered data collection. Nevertheless, results showed an average home-range size and slow movement rates compared to other estimates, and confrmed the species' preference for forested habitats. A global evaluation of satellite telemetry in wildlife research, including over 3,000 telemetry units, provided insight into the relative in uence of the environment, topography, species, and unit characteristics on unit performance. Fix acquisition and data transfer rates were high, but close to half of the deployments failed prematurely, and half of these due to technical malfunction. Species and unit characteristics predicted unit performance better than environmental factors. Conservation network design based on moderately data-demanding models seems to be an achievable objective. However, modelling with high levels of ecological detail is still challenged by technological shortcomings. Ultimately, efective conservation network design depends on the continued collaboration between the modelling, empirical, and applied domains of connectivity conservation.

Telemetry system, Optimisation, Sensoric networks, Smart Grid, Internet of Things, Sensors, Information security, Cryptography, Cryptography algorithms, Cryptosystem, Confidentiality, Integrity, Authentication, Data freshness, Non-Repudiation.

Predatory demersal fish are declining on a global scale but in many cases there is a lack of ecological information to assist management agencies in reducing the decline. Information on population structure and connectivity is central to our ecological understanding, not just for fisheries biology but also more broadly for conservation and persistence of species. Natural tags and satellite telemetry can help address population structure questions. Various tags were used to investigate population structure and connectivity of the important mulloway (Argyrosomus japonicus) in southern Australia. Fifteen microsatellite markers were developed to help determine the genetic population structure of mulloway. These markers were tested, and found to be useful, on other members of the family sciaenidae and hence can be used to investigate molecular structure in other sciaenids. Within mulloway, broad scale genetic structuring between South African and Australian mulloway was evident. Within Australia, four genetic populations across the range of mulloway were also evident. Biogeographic factors drove population structuring, as determined using decomposed pairwise regression, a rarely applied approach in the marine environment. Furthermore, our results form a growing body of evidence suggesting population structure is possible in the connected marine environment. The various natural tags have different advantages and disadvantages, hence, by applying multiple approaches concurrently a greater scrutiny of population structure can be achieved. However, there is continuing debate on how best to integrate multiple approaches and thus condensing and producing simplified results ready for managing agency interpretation. Three approaches, namely, microsatellites, otolith chemistry and otolith shape were applied to the same mulloway samples. These three approaches are each affected by different intrinsic and extrinsic factors and are informative over different temporal scales. Thus, an overall integrated tag was obtained that provides a broader ‘body of evidence’ to population structure. The results also demonstrated that integration of different data sets was feasible prior to statistical testing, facilitating a single overall result. However there were some slight differences in the results produced by the different approaches, which highlights the need for a thorough understanding of the influence of intrinsic and extrinsic factors on natural tags. To properly interpret data from natural tags it is useful to understand factors contributing to variation in the tag. Otolith chemistry is a widely used natural tag, but differing responses to environmental parameters have been reported. Temperature and salinity were manipulated in a controlled laboratory setting along with intrinsic (population) differences and their effects on the otolith chemical tag investigated. A significant influence of genetic population on otolith chemistry was found and also evident was a response to temperature. This understanding of mulloway otolith chemistry will enable more accurate estimation of environmental patterns and supports the view that the otolith chemical tag is more complex than previously thought. Satellite telemetry can be used to track fish movement while also logging environmental information. This technology has been used on pelagic and benthic predatory fish, but has not been used on demersal finfish. Whilst the natural tags can provide indirect evidence of movements, satellite telemetry has the ability to provide direct information on fish movements. Satellite telemetry was utilised on an isolated population of mulloway to provide information on the spatial scale of movements of mulloway; this information was related to movement in and out of marine parks. The results demonstrated the medium spatial scale of movements (up to 500 km) was similar to other predatory demersal fish and whilst undergoing these movements the fish interacted with marine park boundaries. Thus satellite telemetry was a useful approach for understanding demersal fish population dynamics. Several approaches were successfully implemented to investigate population structure and movements of a large predatory fish, mulloway. A better understanding of population structure could assist management of some species. An enhanced understanding of predatory fish populations and the associated scientific approaches used to study such populations is urgent, due to the worldwide decline.<br>Thesis (Ph.D.) (Research by Publication) -- University of Adelaide, School of Biological Sciences, 2015.