Bakambu J.N.,MDA Corporation |
Langley C.,MDA Corporation |
Pushpanathan G.,MDA Corporation |
MacLean W.J.,MDA Corporation |
And 2 more authors.
Journal of Field Robotics | Year: 2012
This paper presents the Mojave Desert field test results of planetary rover visual motion estimation (VME) developed under the "Autonomous, Intelligent, and Robust Guidance, Navigation, and Control for Planetary Rovers (AIR-GNC)" project. Three VME schemes are compared in realistic conditions. The main innovations of this project include the use of different features from stereo-pair images as visual landmarks and the use of vision-based feedback to close the path-tracking loop. The multiweek field campaign, conducted on relevant Mars analogue terrains, under dramatically changing lighting and weather conditions, shows good localization accuracy on the average. Moreover, the MDA-developed inertial measurement unit (IMU)-corrected odometry was reliable and had good accuracy at all test locations, including loose sand dunes. These results are based on data collected during 7.3 km of traverse, including both fully autonomous and joystick-driven runs. © 2012 Wiley Periodicals, Inc.
Shi J.-F.,MDA Corporation |
Ulrich S.,Carleton University
Proceedings of the International Astronautical Congress, IAC | Year: 2014
A direct adaptive control law is developed for a robust International Space Station attitude regulation during robotic capture of a free-flyer by the Space Station Remote Manipulator System. The proposed output feedback direct adaptive controller is developed from the Simple Adaptive Control theory, and makes use of the Modified Rodrigues Parameters. The performance of the adaptive controller is examined in MacDonald, Dettwiler and Associates Space Station Portable Operations Training Simulator; a high-fidelity multibody flexible dynamic simulation facility. SPOTS simulafion results are provided for an ISS free-flyer capture of a SpaceX Dragon-like space vehicle with the flexible SSRMS manipulator. Simulation results highlight the improved performance and robustness to parametric and dynamics modeling uncertainties of the proposed novel attitude control approach when compared with an attitude Proportional-Derivative controller. Copyright © 2014 by MDA Corporation and Dr. Steve Ulrich.
News Article | November 24, 2016
— According to a new market research report "Geospatial Analytics Market by Type (Surface Analysis, Network Analysis, Geovisualization), Technology, Application, Vertical, Region (Europe, North America, Asia-Pacific, Middle East & Africa, Latin America) - Global Forecast to 2020", the Geospatial Analytics Market expected to grow from USD 27.42 billion in 2015 to USD 72.21 billion by 2020, at a CAGR of 21.4% from 2015 to 2020. Browse 84 market data Tables and 70 Figures spread through 160 Pages and in-depth TOC on "Geospatial Analytics Market - Global Forecast to 2020" http://www.marketsandmarkets.com/Market-Reports/geospatial-analytics-market-198354497.html Early buyers will receive 10% customization on this report. Convergence & integration, commoditization, and security & safety are driving the global geospatial analytics market. Convergence and integration paved the way for a solution-centric approach, allowing technology developers to work in close collaboration with the end users, directly or through solution partners. GIS technology to play a key role in the geospatial analytics market GIS technology has given a significant boost to the geospatial analytics market due to developments in several trends, such as increase in the amount of geospatial information gathered through smartphones, GPS devices, and social media, among others. An increase in the accuracy of data gathered; advancements in hardware technologies are additional factors influencing the demand of GIS technology. Business vertical holds the largest share in the geospatial analytics market The business vertical holds the largest market share among all the verticals. This large share is attributed to the increasing deployment of geospatial technologies in verticals, such as retail, manufacturing, real estate, healthcare, and so on. In retail, GIS technology is used to discover the best possible site for the location of a new shopping mall. Europe emerged as the leading region in terms of adoption and implementation of geospatial services Europe accounted for the largest share in the global geospatial analytics market in 2015. This high market share is mainly attributed to huge investments made in the field of geospatial analytics by key players in European countries. Major players of the geospatial analytics market covered in the report include Trimble Navigation, Ltd., Hexagon AB, General Electric, RMSI, Bentley Systems, Inc., ESRI, MDA Corporation, Fugro N.V., Harris Corporation, and WS Atkins Plc. Some of the other players are TomTom, Digital Globe, Critigen, AAM, and Nokia. The increasing importance of geospatial analytics can be gauged by the fact that many leading players across the globe are entering into partnership agreements with each other to gain a commendable position in the global market. Acquisition is another key strategy adopted by market players, wherein leading providers of geospatial services are being acquired by the key players. The report provides market trends, overall adoption scenarios, and competitive landscape as well as key drivers, restraints, and opportunities in this market. It aims to estimate the current size and future growth potential of this market across different types, technologies, applications, verticals, and regions. The scope of the report also covers analysis of strategies, such as new product launches, mergers & acquisitions, partnerships, agreements, and collaborations among key vendors. MarketsandMarkets is world’s No. 2 firm in terms of annually published premium market research reports. Serving 1700 global fortune enterprises with more than 1200 premium studies in a year, M&M is catering to multitude of clients across 8 different industrial verticals. We specialize in consulting assignments and business research across high growth markets, cutting edge technologies and newer applications. Our 850 fulltime analyst and SMEs at MarketsandMarkets are tracking global high growth markets following the "Growth Engagement Model – GEM". The GEM aims at proactive collaboration with the clients to identify new opportunities, identify most important customers, write "Attack, avoid and defend" strategies, identify sources of incremental revenues for both the company and its competitors. M&M’s flagship competitive intelligence and market research platform, "RT" connects over 200,000 markets and entire value chains for deeper understanding of the unmet insights along with market sizing and forecasts of niche markets. The new included chapters on Methodology and Benchmarking presented with high quality analytical infographics in our reports gives complete visibility of how the numbers have been arrived and defend the accuracy of the numbers. We at MarketsandMarkets are inspired to help our clients grow by providing apt business insight with our huge market intelligence repository. For more information, please visit http://www.marketsandmarkets.com/Market-Reports/geospatial-analytics-market-198354497.html
Samsonov Sergey S.,Institute of Geological & Nuclear Sciences |
Samsonov Sergey S.,European Center for Geodynamics and Seismology |
van der Kooij M.,MDA Corporation |
Tiampo K.,University of Western Ontario
Computers and Geosciences | Year: 2011
We demonstrate here a computer code for calculation of time series and also mean and linear deformation rates from a set of coregistered unwrapped differential interferograms using a linear least-squares inversion technique based on the small baseline subset (SBAS) algorithm. The computer code is written in C and uses a singular value decomposition (SVD) routine from the LAPACK library and the fast Fourier transform for spatial filtering from the FFTW library. Various offset estimation and topographic correction algorithms are implemented, including simultaneous inversion for deformation rates and residual topographic error. This approach is particularly useful when applied to ALOS PALSAR interferograms that are coherent even at large perpendicular baselines and acquired with orbital parameters correlated with the time of acquisition. This methodology is applied to produce time series of ground deformation at Tauhara and Wairakei geothermal fields (Taupo Volcanic Zone, North Island, New Zealand) from 12 ALOS PALSAR images acquired between July 2007 and December 2009. We also present here a high-resolution deformation map of the ground subsidence caused by the extraction of geothermal groundwater for power generation, with maximum rates of subsidence of about 7. cm/y. © 2011 Elsevier Ltd.
Norman R.B.,NASA |
Blattnig S.R.,NASA |
De Angelis G.,MDA Corporation |
Badavi F.F.,Christopher Newport University |
Advances in Space Research | Year: 2012
An accurate understanding of the physical interactions and transport of space radiation is important for safe and efficient space operations. Secondary particles produced by primary particle interactions with intervening materials are an important contribution to radiation risk. Pions are copiously produced in the nuclear interactions typical of space radiations and can therefore be an important contribution to radiation exposure. Charged pions decay almost exclusively to muons. As a consequence, muons must also be considered in space radiation exposure studies. In this work, the NASA space radiation transport code HZETRN has been extended to include the transport of charged pions and muons. The relevant transport equation, solution method, and implemented cross sections are reviewed. Muon production in the Earth's upper atmosphere is then investigated, and comparisons with recent balloon flight measurements of differential muon flux are presented. Muon production from the updated version of HZETRN is found to match the experimental data well. © 2012 COSPAR. Published by Elsevier Ltd. All rights reserved.
D'Aliesio G.,MDA Corporation
Proceedings of the International Astronautical Congress, IAC | Year: 2012
With the ever increasing need for high performance processing, high capacity and high performance mass memory along with a variety of data acquisition and control requirements in space, MDA's Earth Observation Data Management Systems line of products are enabling compact and highly integrated solutions for EO applications. From processor boards and data storage units to data acquisition and mechanism control electronics, this paper will overview a set of MDA's space qualified electronic products targeted towards earth observation payloads. The ESP750 enhanced space processor board is a high performance, radiation tolerant single board computer offered in a compact 3U form factor. The card is built around the IBM PowerPC 750FX processor operating at up to 700 MHz and includes Level 1 (LI) and Level 2 (L2) cache memory, on-board SDRAM, EEPROM, Built-in Test (BIT), a secure digital watchdog timer and a compliment of General Purpose I/O (GPIO), interrupt and timer functions. The Data Storage Unit (DSU) is being developed to provide earth observation satellites with cutting edge digital data storage technology for spaceflight. The DSU is a high speed mass memory used for storage and playback of data and can operate on multiple files concurrently. It contains high density non-volatile flash technology, a Leon3 fault tolerant processor, advanced FPGA technology and all the interface, control and memory functions required for operation in a compact, radiation tolerant and low power design. The DSU has the potential to perform certain data processing onboard, offers scalable storage capacity, and contains high reliability features, making it an ideal mass storage solution for next generation earth observation satellites. MDA's series of data acquisition electronics provide a variety of custom interfaces to acquire a multitude of signal types. Combined with command and control functionality, overall instrument or payload management can be achieved in a compact and integrated solution. MDA's long heritage in robotics has created an expertise in motor drive electronics for space applications. As a result, MDA's line of APMEs and MDEs can provide a low cost and compact off-the-shelf solution for antenna pointing, deployment or motor/mechanism control for instruments. MDA's series ofEO Data Management Systems line of products can be combined in order to achieve a highly integrated, cost effective, low mass/power solution for EO missions. Copyright © (2012) by the International Astronautical Federation.
Van Der Kooij M.,MDA Corporation
GEO: connexion | Year: 2013
RADARSAT remote sensing imagery can help to predict and mitigate against their effects . The most effective method for collecting spatial and temporal information for flood prevention, mitigation and response operations is data from remote sensing satellites. In use for decades, remote sensing satellite imagery is a proven technology that can identify those areas most at risk, and support effective flood prevention programs. Satellites can also deliver timely information on the scope and movement of floodwaters while an event is occurring, to better support assessment and rescue efforts. RADARSAT-1 and -2 are the worlds most capable, commercial SAR missions, with all-weather imaging day and night, superior capacity and tasking flexibility. Multiple imaging modes and selectable polarizations improve the qualitative nature of acquired scenes, and can be optimized to capture specific features or targets.
Camelo L.M.,MDA Corporation
2010 14th International Symposium on Antenna Technology and Applied Electromagnetics and the American Electromagnetics Conference, ANTEM/AMEREM 2010 | Year: 2010
This paper describes the main RF design features, as well as the RF performance, of the Express AM4 Ku and Ka band top-floor steerable antennas. © 2010 IEEE.
MDA Incorporated | Date: 2010-01-25
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MDA Incorporated | Date: 2010-10-22
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