Latest Space News
Thu, 4 Feb 2016 17:42:00 +0100
The 18th and final primary mirror segment is installed on what will be the biggest and most powerful space telescope ever launched. The final mirror installation Wednesday at NASA's Goddard Space Flight Center in Greenbelt, Maryland marks an important milestone in the assembly of the agency's James Webb Space Telescope. "Scientists and engineers have been working tirelessly to install these incredible, nearly perfect mirrors that will focus light from previously hidden realms of planetary atm...
Thu, 4 Feb 2016 15:16:00 +0100
Kongsberg Gallium, an Ottawa-based developer of real-time, mission critical, geospatial visualisation software, announced today that they will be changing their name to Kongsberg Geospatial Ltd., effective immediately. The move is part of a comprehensive rebranding strategy to more effectively align the Company’s name with its future strategy and functional role as part of the Kongsberg family of companies. The Company’s ownership and staff has not changed.  “We fel...
Thu, 4 Feb 2016 10:00:00 +0100
There are no large caverns inside Comet 67P/Churyumov-Gerasimenko. ESA's Rosetta mission has made measurements that clearly demonstrate this, solving a long-standing mystery. Comets are the icy remnants left over from the formation of the planets 4.6 billion years ago. A total of eight comets have now been visited by spacecraft and, thanks to these missions, we have built up a picture of the basic properties of these cosmic time capsules. While some questions have been answered, others have b...
Wed, 3 Feb 2016 20:00:00 +0100
Engineers at Lockheed Martin (NYSE: LMT) recently proved their design for the world's most powerful Global Positioning System (GPS) satellite can operate in and withstand the harsh conditions it will experience on orbit. On December 23, Lockheed Martin's first GPS III satellite for the U.S. Air Force completed system-level Thermal Vacuum (TVAC) testing, validating the design of the entire assembled satellite. TVAC is a rigorous test designed to prove a satellite's integrity and operational ca...
Wed, 3 Feb 2016 18:32:00 +0100
ESA's Expose facility was retrieved today from outside the International Space Station by cosmonauts Yuri Malenchenko and Sergei Volkov, who were completing a spacewalk to place new experiments on the outpost's hull. Expose is a series of chemistry laboratories that place samples in the harsh environment of space unprotected. Subjected to vacuum, radiation, temperature differences and the full blast of our Sun's energy, 46 species of small organisms and over 150 organic compounds have returne...
Wed, 3 Feb 2016 17:00:00 +0100
The Lockheed Martin (NYSE: LMT) and NASA Orion team has secured the 2,700 lb. Exploration Mission-1 (EM-1) Orion crew module into its structural assembly tool, also known as the "birdcage." The crew module is the living quarters for astronauts and the backbone for many of Orion's systems such as propulsion, avionics and parachutes. "The structure shown here is 500 pounds lighter than its Exploration Flight Test-1 (EFT-1) counterpart," said Mike Hawes, Lockheed Martin Orion vice president and ...
Wed, 3 Feb 2016 16:21:00 +0100
With the launch of Sentinel-3A confirmed for 16 February, preparations for liftoff are charging full speed ahead. The tricky task of fuelling the satellite has now been ticked off the 'to do list' and the propulsion team is already decontaminating their equipment before returning home. Official confirmation of the new launch date had to come before the team could start this delicate operation. The hydrazine fuel is extremely toxic so only a few specialists remained in the cleanroom during ...
Wed, 3 Feb 2016 13:00:00 +0100
Cubic Corporation ( NYSE: CUB ) today announced it received final Hart-Scott-Rodino regulatory approval and completed its acquisition of GATR Technologies (GATR), a manufacturer of next-generation deployable satellite communication terminal solutions based in Huntsville, Alabama. Cubic completed the acquisition of GATR on February 2, 2016 for a purchase price of $232.5 million. GATR Technologies will operate within the Cubic Global Defense business unit and greatly expands the company's footp...
Wed, 3 Feb 2016 12:00:00 +0100
Astronomers have used the ALMA and IRAM telescopes to make the first direct measurement of the temperature of the large dust grains in the outer parts of a planet-forming disc around a young star. By applying a novel technique to observations of an object nicknamed the Flying Saucer they find that the grains are much colder than expected: -266 degrees Celsius. This surprising result suggests that models of these discs may need to be revised. The international team, led by Stephane Guilloteau ...
Wed, 3 Feb 2016 11:00:00 +0100
SKY Perfect JSAT Corporation (SJC) has awarded Lockheed Martin (NYSE: LMT) a contract for JCSAT-17, a satellite based on the A2100 common design. "We've built a number of satellites for SJC and we're honored that they have placed their trust in us again," said Carl Marchetto, vice president and general manager of Commercial Space at Lockheed Martin Space Systems. "And with the sale of an additional A2100, it adds yet another satellite to our healthy backlog." JCSAT-17 is an S band satellit...
Tue, 2 Feb 2016 17:46:00 +0100
The first flight of NASA’s new rocket, the Space Launch System (SLS), will carry 13 CubeSats to test innovative ideas along with an uncrewed Orion spacecraft in 2018. These small satellite secondary payloads will carry science and technology investigations to help pave the way for future human exploration in deep space, including the journey to Mars. SLS’ first flight, referred to as Exploration Mission-1 (EM-1), provides the rare opportunity for these small experiments to rea...
Tue, 2 Feb 2016 17:00:00 +0100
A newly upgraded camera that incorporates light sensors developed at the U.S. Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) is now one of the best cameras on the planet for studying outer space at red wavelengths that are too red for the human eye to see. Very distant astronomical objects appear much redder when observed on Earth due to an effect known as redshift, so this sensitivity to red light enables the camera to detect objects many billions of light years ...
Tue, 2 Feb 2016 11:08:00 +0100
The human body is made for living on Earth - take away the constant pull of gravity and muscles and bones begin to waste away. Living in space is hard on astronauts and ways must be found to keep them fit and safe. Bedrest study ESA and NASA are planning to confine human subjects to bed for 60 days in 2017 in Cologne, Germany to probe the effects of spaceflight, with periods in a centrifuge to test if artificial gravity can keep them healthy. Bedrest studies offer a way of testing measure...
Tue, 2 Feb 2016 10:38:00 +0100
Europe's ninth and tenth Galileo satellites have started broadcasting working navigation messages. These two satellites were launched together on 11 September last year. Once safely in orbit and their systems activated, their navigation payloads and search and rescue transponders were subjected to a rigorous process of in-orbit testing, to ensure their performance reached the necessary specifications to become part of the Galileo system. Radio-frequency measurements of the Galileo signa...
Mon, 1 Feb 2016 15:40:00 +0100
Thales Alenia Space Belgium announced today that it has signed a contract with Airbus Safran Launchers (ASL), prime contractor for the Ariane 6 launcher on behalf of the European Space Agency (ESA), to particpate in development of the range safety system for Ariane 6, including a qualification launch. The new Ariane 6 launcher was approved by ESA's ministerial-level council meeting in December 2014 to ensure that Europe retains its leadership in the fast-growing commercial launch services mar...
Mon, 1 Feb 2016 15:22:00 +0100
The Ariane 5 for Arianespace’s second flight of 2016 has completed its basic build-up, marking a key milestone as preparations advance for this early March mission from the Spaceport in French Guiana – which will carry the EUTELSAT 65 West A relay satellite. During activity this week inside the Spaceport’s Launcher Integration Building for Ariane 5, the “upper composite” – consisting of its cryogenic upper stage and equipment bay – was installed a...
Mon, 1 Feb 2016 15:00:00 +0100
Harris Corporation (NYSE:HRS) has announced that it will offer an all-digital navigation payload for GPS III Space Vehicles (SV) 11 and beyond. Harris' fully digital navigation payload will add value to the U.S. Air Force's GPS mission by offering enhanced performance and enabling on-orbit reprogramming. The all-digital payload expands on the advanced features of the current 70-percent digital solution Harris provides for Lockheed Martin's GPS III SV 1-8 satellites. The features provide great...
Mon, 1 Feb 2016 10:49:00 +0100
Indra has been awarded the contract to expand the Hispasat ground segment for an amount of more than 5 million euros and an execution period extending until January 2017. The company will prepare the ground segment so that it can carry out the monitoring and control of the new Hispasat 1F and Amazonas 5 satellites. Among other tasks, the company will supply four ground stations. Two of them will be installed in the Hispasat control center in Rio de Janeiro (Brazil) while another will be put i...
Sat, 30 Jan 2016 08:36:00 +0100
International Launch Services (ILS) successfully placed the EUTELSAT 9B satellite into geosynchronous transfer orbit today, for Eutelsat Communications of Paris, France. With this mission, ILS, a leader in providing mission integration and launch services to the global commercial satellite industry, completed its 92nd Proton launch overall and 1st Proton launch of 2016. Since its maiden flight in 1965, this was the 410th aggregate launch for the Proton vehicle, including both Federal and commerc...
Fri, 29 Jan 2016 16:05:00 +0100
The European Data Relay System's first laser terminal has reached space aboard its host satellite and is now under way to its final operating position. EDRS-A was launched on 29 January as part of the Eutelsat-9B telecom satellite at 22:20 GMT (23:20 CET, 04:20 30 January local time) atop a Proton rocket from Baikonur, Kazakhstan. The satellite was released at 07:32 GMT today, around 36 000 km over the equator, and is now moving towards its final geostationary position at 9oE over Europe, ...
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    CV: Research Assistant

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    Personal information
     Name:<withheld>
     Age:<withheld>
     Country:<withheld>
     Location:<withheld>
    Contact information
     Email:<withheld>
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    Candidate Profile
     Date Submitted:18-02-2012
     Last Modified:21-02-2012 (05:42)
    Job information
     Current job:Research Assistant
     Employment Term:Permanent
     Job location:US only
     Date available:within 2 months
     Industry:Civil Agencies/International Organizations
     Keywordswireless networking, wireless video streaming, compressed sensing (CS), convex optimization, cooperative communications, wireless multimedia sensor networks (WMSN), wireless sensor networks (WSN), internet of things (IoT), distortion based networking, cro
    CV

    OBJECTIVE
    Full-time position that allows for advanced research in electrical and computer engineering in the field of wireless networking and communications.

    AVAILABILITY
    Start time is negotiable, but preferably April 2012

    CITIZENSHIP USA

    RESEARCH INTERESTS
    wireless networking, wireless video streaming, compressed sensing (CS), convex optimization, cooperative communications, wireless multimedia sensor networks (WMSN), wireless sensor networks (WSN), internet of things (IoT), distortion based networking, cross-layer design, wireless routing protocols, wireless MAC protocols

    EDUCATION
    The State University of New York (SUNY) University at Buffalo, Buffalo, NY
    -Ph.D., Electrical Engineering, Expected May 2012 GPA: 3.87 (4.0 scale)
    -Dissertation Topic: Relay Assisted Compressive Video Sampling in Wireless Multimedia Sensor Networks
    -Adviser: Professor Tommaso Melodia
    -Area of Study: Wireless Networking and Communications
    -M.S., Electrical Engineering, May 2010 -GPA: 3.83 (4.0 scale)
    -Qualifying Exam Score: 68/70 (December 2010)
    -Adviser: Professor Tommaso Melodia
    -Area of Study: Wireless Networking and Communications Rochester Institute of Technology, Rochester, NY
    -B.S., Electrical Engineering, June 2008
    -GPA: 3.62 (4.0 scale)
    -High Honors

    RESEARCH EXPERIENCE
    Research Assistant August 2008 - present
    -Wireless Networks and Embedded Systems Laboratory,
    -Department of Electrical Engineering,
    -State University of New York (SUNY) University at Buffalo
    -Supervisor: Professor Tommaso Melodia
    -Major Projects
    --Relay-Assisted Compressive Video Sensing (RA-CVS)
    ---Design a system that uses compressive imaging properties and compressed sensing error correction properties in a cooperative communications system to transmit video over wireless multimedia sensor networks.
    ---Implement both proposed schemes and traditional schemes on USRP2 software defined radio test bed (ongoing).
    --Compressive Video Sensing (CVS)
    ---Design a video encoder based on compressed sensing that takes advantage of both spatial and temporal correlation without the need for motion vectors.
    ---Design an adaptive parity scheme to compensate for channel errors, and compare performance with RCPC forward error correction encoding.
    --Distortion Minimizing Rate Control (DMRC)
    ---Design a transport layer rate controller suitable for video transmission over wireless multimedia sensor networks.
    ---Extend the rate controller for compressive video sensing encoded video streams (C-DMRC).
    ---Use convex optimization techniques to prove C-DMRC solves a utility maximization problem with the sum of the received video quality as the utility function.

    Research Assistant / Network Engineer November 2006 - August 2008
    -Lab for Wireless Networking and Security,
    -Golisano College of Computing and Information Sciences | Networking, Security, and Systems Administration,
    -Rochester Institute of Technology
    -Major Projects
    --Reactive Multi-Meshed Tree Routing (RMMT)
    ---Design a reactive multi-meshed tree routing protocol for communication between multiple clusters and implement protocol using OPNET modeler.
    --Medium Access Control (MAC) for Airborne Networks using Directional Antennas
    ---Design a MAC that takes advantage of reuse opportunities provides by highly directional antennas.

    JOURNAL PUBLICATIONS
    S. Pudlewski, T. Melodia, A. Prasanna "Compressed-Sensing-Enabled Video Streaming for Wireless Multimedia Sensor Networks," to appear in IEEE Transactions on Mobile Computing 2011.
    S. Pudlewski, T. Melodia, "A Distortion-minimizing Rate Controller for Wireless Multimedia Sensor Networks," Computer Communications (Elsevier), Vol. 33, no. 12, pp. 1380-1390, July 2010.
    T. Melodia, S. Pudlewski, "A Case for Compressive Video Streaming in Wireless Multimedia Sensor Networks," IEEE COMSOC MMTC E-Letter, Vol. 4, No. 9, October 2009.

    SUBMITTED JOURNAL PUBLICATIONS
    S. Pudlewski, T. Melodia, "A Tutorial on Encoding and Wireless Transmission of Compressively Sampled Videos," submitted for publication in IEEE Communications Surveys & Tutorials 2011.
    S. Pudlewski, T. Melodia, "A Rate-Energy-Distortion Analysis for Compressive Video Streaming on Multimedia Sensors" submitted for publication in IEEE Transactions on Multimedia.

    CONFERENCE PUBLICATIONS
    S. Pudlewski, T. Melodia,"A Rate-Energy-Distortion Analysis for Compressed-Sensing-Enabled Wireless Video Streaming on Multimedia Sensors," in Proc. of IEEE Global Communications Conference (GLOBECOM), Houston, Texas, USA, December 2011.
    S. Pudlewski, T. Melodia, "C-DMRC: Compressive Distortion-Minimizing Rate Control for Wireless Multimedia Sensor Networks," in Proc. Of IEEE Intl. Conf. on Sensor, Mesh and Ad Hoc Communications and Networks (SECON), Boston, Massachusetts, June 2010.
    S. Pudlewski, T. Melodia, "On the Performance of Compressive Video Streaming for Wireless Multimedia Sensor Networks," in Proc. of IEEE Intl. Conf. on Communications (ICC),Cape Town,South Africa, May 2010.
    S. Pudlewski, A. Prasanna, T. Melodia, “"Resilient Image Sensor Networks in Lossy Channels Using Compressed Sensing," in Proc. Of IEEE Intl. Workshop on Information Quality and Quality of Service for Pervasive Computing (IQ2S) , Mannheim, Germany, March 2010. S. Pudlewski, T. Melodia, "DMRC: Distortion-minimizing Rate Control for Wireless Multimedia Sensor Networks," in Proc. of IEEE Intl. Conf. on Mobile Ad Hoc And Sensor Systems (MASS), Macau, China, October 2009.
    L. Ding, S. Pudlewski, T. Melodia, S. Batalama, J. Matyjas, M. Medley, "Distributed Spectrum Sharing for Video Streaming in Cognitive Radio Ad Hoc Networks," in Proc. of Intl. Workshop on Cross-layer Design in Wireless Mobile Ad Hoc Networks, Niagara Falls, Canada, September 2009.
    S. Pudlewski, N. Shenoy, Y. Al-Mousa, Y. Pan, J. Fischer, "A Hybrid Multi Meshed Tree Routing Protocol for Wireless Ad Hoc Networks," in Proc. Of IEEE Intl. Conf. on Mobile Ad Hoc And Sensor Systems (MASS), Atlanta, Georgia, USA, September 2008.

    PAPERS IN PREPARATION
    S. Pudlewski, T. Melodia, "RA-CVS: Cooperating to Stream Compressively Sampled Videos," March 2012.

    BOOK CHAPTERS IN PREPARATION
    S. Pudlewski, T. Melodia, "Compressive Video Sensing" in Intelligent Sensor Networks: Across Sensing, Signal Processing, and Machine Learning, Eds. Fei Hu, Qi Hao.

    REFEREE SERVICE
    -IEEE Communications Surveys & Tutorials
    -IEEE Journal on Selected Areas in Communications (JSAC)
    -IEEE Transactions on Mobile Computing (TMC)
    -IEEE Transactions on Vehicular Technology (TVT)
    -European Transactions on Telecommunications (ETT)
    -Ad Hoc Networks (Elsevier)
    -Computer Networks (Elsevier)
    -Journal of Sensors (Hindawi)
    -Ad Hoc & Sensor Wireless Networks (AHSWN)
    -IEEE Global Communications Conference (GLOBECOM) 2008, 2009, 2010, 2011
    -IEEE International Conference on Mobile Ad-hoc and Sensor Systems (MASS) 2009, 2010, 2011
    -IEEE International Conference on Communication Technology (ICCT) 2011
    -Military Communications Conference (MILCOM) 2011
    -IEEE Workshop on Internet of Things Technology and Architectures (IoTech) 2011
    -European Conference on Wireless Sensor Networks (EWSN) 2011
    -IEEE International Conference on Computer Communications (INFOCOM) 2011, 2012

    PROFESSIONAL EXPERIENCE
    Vocal Technologies, Buffalo, NY May 2010 - August 2010
    -Intern
    -Supervisor: JohnBlume
    -Major Projects
    --Built a basic implementation of the GPSR compressed sensing reconstruction algorithm using C.
    --Studied possible cryptography uses of compressed sensing.

    Air Force Research Laboratory (RIGF), Rome, NY July 2009 - August 2009
    -Intern -Supervisor: Dr. John Matyjas
    -Major Projects
    --Video Simulation using OPNET
    --Design a system that transmits real (H.264, MJPEG) video traces using OP-NET Modeler.
    --Incorporate real airborne channel models into OPNET and test received video quality using multiple routing algorithms.

    Spectracom Corp, Rochester, NY November 2006 - August 2008
    -Network Engineer (Intern)
    -Supervisor: John Fischer
    -Major Projects
    --Mesh Network Design and Simulation
    --Design and simulate network protocols using OPNET Modeler.
    --Designed test scenarios for simulation.
    --Help design, test, and improve new network protocols.

    Philips Lighting CO, Bath, NY June 2005 - August 2005
    -Intern
    -Major Projects
    --Test electrical characteristic of lamps over lifetime.
    --Maintain ballasts.
    --Assist engineers in new lamp test and development.

    SOFTWARE SKILLS
    -Computer Programming: MATLAB, C, C++, Python, TCL, UNIX shell scripting.
    -Embedded and Real-time Systems: Software defined radio implementation using USRP2 and GNURadio.
    -Wired and Wireless Network Simulation: ns-2, ns-3, OPNET
    -MATLAB skill set: Wireless channel simulations, linear algebra, Fourier transforms, wavelet transform, CVX, image and video processing, compressed sensing implementation
    -Productivity Applications: TEX (LATEX and BIBTEX), Microsoft Office (Excel, Word, Access, Visio, PowerPoint, OneNote, Outlook), OpenOffice, Gimp, XFig, other common productivity packages (for Windows and Linux platforms)

    EXPERTISE
    -Networking, Communications and Signal Processing:
    --Compressed Sensing, Wireless Sensor Networks, Multimedia Sensor Networks, Video Encoding, Distortion Based Networking, Network Modeling, Network Utility Maximization, Routing Protocols, MAC protocols, Cooperative Communications.
    -Modeling and Simulation:
    --Multimedia Network Simulation, Channel Model Simulation, Wireless Network Simulation (OPNET, ns-2, ns-3).
    -Mathematics:
    --Convex Optimization, Linear Programming, Real Analysis, Network Modeling.

    REFERENCES Available upon request.


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