Latest Space News
Mon, 27 Mar 2017 11:27:00 +0100
Astronomers have uncovered a supermassive black hole that has been propelled out of the center of a distant galaxy by what could be the awesome power of gravitational waves. Though there have been several other suspected, similarly booted black holes elsewhere, none has been confirmed so far. Astronomers think this object, detected by NASA's Hubble Space Telescope, is a very strong case. Weighing more than 1 billion suns, the rogue black hole is the most massive black hole ever detected...
Fri, 24 Mar 2017 22:43:00 +0100
Around 250 million measurements taken by ESA's CryoSat over the last six years have been used to create a unique 3D view of Antarctica, offering a snapshot of the undulating surface of this vast ice sheet. CryoSat's radar altimeter detects tiny variations in the height of the ice across the entire continent, including on the steeper continental margins where the vast majority of ice losses occur. Importantly, the satellite's orbit takes it to latitudes within 200 km of the north and south ...
Fri, 24 Mar 2017 21:30:00 +0100
NASA has selected a science mission that will measure emissions from the interstellar medium, which is the cosmic material found between stars. This data will help scientists determine the life cycle of interstellar gas in our Milky Way galaxy, witness the formation and destruction of star-forming clouds, and understand the dynamics and gas flow in the vicinity of the center of our galaxy. The Galactic/Extragalactic ULDB Spectroscopic Terahertz Observatory (GUSTO) mission, led by principal in...
Fri, 24 Mar 2017 14:39:00 +0100
Information from ESA's magnetic field Swarm mission has led to the discovery of supersonic plasma jets high up in our atmosphere that can push temperatures up to almost 10 000oC. Presenting these findings at this week's Swarm Science Meeting in Canada, scientists from the University of Calgary explained how they used measurements from the trio of Swarm satellites to build on what was known about vast sheets of electric current in the upper atmosphere. The theory that there are huge electri...
Thu, 23 Mar 2017 08:36:00 +0100
Designers of future Moon missions and bases have to contend with a chilling challenge: how might their creations endure the fortnight-long lunar night? ESA has arrived at a low-cost way of surviving. During prolonged night, when the surface is lit only by blue Earthlight, temperatures dip below -170C. Some locations at higher latitudes have shorter nights, though others have much longer or even permanent darkness. Numerous robotic missions have perished during this prolonged cold. Russia'...
Wed, 22 Mar 2017 19:19:00 +0100
Consider that the Earth is just a giant cosmic dust bunny-a big bundle of debris amassed from exploded stars. We Earthlings are essentially just little clumps of stardust, too, albeit with very complex chemistry. And because outer space is a very dusty place, that makes things very difficult for astronomers and astrophysicists who are trying to peer farther across the universe or deep into the center of our own galaxy to learn more about their structure, formation and evolution. Buildi...
Wed, 22 Mar 2017 15:00:00 +0100
From its final orbit location 22,000 miles above the equator, the third Lockheed Martin-built (NYSE: LMT) Space Based Infrared System (SBIRS) satellite recently sent its first images back down to Earth, a milestone known as "first light."   The satellite was launched on Jan. 20 aboard a United Launch Alliance Atlas V rocket and is the third in a series of Geosynchronous Earth Orbit (GEO) satellites that the U.S. Air Force uses to provide faster and more accurate missile ...
Wed, 22 Mar 2017 14:47:00 +0100
Space Situational Awareness remains a key priority for armed forces capable of operating above the Earth. Space is now extremely contested, congested and competitive as more and more countries and organisation gain access to space technology. However, high amounts of orbiting traffic is not the only threat; space weather, debris and ground based electronic and cyber threats could also have a massive impact on our operations by disrupting satellite activity and therefore military ability on the...
Wed, 22 Mar 2017 08:33:00 +0100
Arianespace’s second Ariane 5 launch of 2017 has been rescheduled for March 23, as continuation of the social movement in French Guiana has prevented today’s transfer of the heavy-lift vehicle to its ELA-3 launch zone. If the situation permits, the mission – designated Flight VA236 in Arianespace’s numbering system – will lift off on March 23 as early as possible within the following window: Between 4:31 p.m. and 7:20 p.m., Washington D.C. time Between ...
Tue, 21 Mar 2017 15:30:00 +0100
Rosetta scientists have made the first compelling link between an outburst of dust and gas and the collapse of a prominent cliff, which also exposed the pristine, icy interior of the comet. Sudden and short-lived outbursts were observed frequently during Rosetta's two-year mission at Comet 67P/Churyumov-Gerasimenko. Although their exact trigger has been much debated, the outbursts seem to point back to the collapse of weak, eroded surfaces, with the sudden exposure and heating of volatile m...
Tue, 21 Mar 2017 10:00:00 +0100
ESA's Swarm satellites are seeing fine details in one of the most difficult layers of Earth's magnetic field to unpick - as well as our planet's magnetic history imprinted on Earth's crust. Earth's magnetic field can be thought of as a huge cocoon, protecting us from cosmic radiation and charged particles that bombard our planet in solar wind. Without it, life as we know it would not exist. Most of the field is generated at depths greater than 3000 km by the movement of molten iron in ...
Mon, 20 Mar 2017 22:21:00 +0100
Teledyne Technologies Incorporated (NYSE:TDY) announced today that its subsidiary, Teledyne Scientific & Imaging, LLC (TS&I), was awarded a $9.98 million contract from the French Space Agency, the Centre National d'Etudes Spatiales (CNES), to provide infrared detectors and electronics for the European Space Agency (ESA) JUICE mission to Jupiter. JUICE is expected to launch in 2022 and reach Jupiter in 2030 to undertake a three and a half year study of Jupiter and three of its moons: Callisto, Ga...
Mon, 20 Mar 2017 15:57:00 +0100
Serionix, a startup fundamentally changing the way we look at air, received a $750,000 contract from NASA to fund continued development of filters to remove toxic gases from next-generation spacesuit life support systems. The same technology is on its way into consumer products expected to launch within the year. Poor indoor air quality is widely associated with significant negative health impacts; however, as awareness of this connection increases, Serionix is committed to making air fresher...
Mon, 20 Mar 2017 13:02:00 +0100
Orbital ATK (NYSE:OA), a global leader in aerospace and defense technologies, provided propulsion, composite and spacecraft technologies to enable the successful launch of both the United Launch Alliance (ULA) Delta IV rocket and the ninth Wideband Global SATCOM (WGS-9) satellite that was launched yesterday from Cape Canaveral Air Force Station, Florida. "Orbital ATK's is proud to contribute a number of key technologies to ULA's Delta IV launch vehicle," said Scott Lehr, President of Orbital ...
Mon, 20 Mar 2017 09:01:00 +0100
Arianespace’s dual-payload mission to orbit telecommunications satellites for Brazil and South Korea has been given the go-ahead for a March 21 liftoff from the Spaceport in French Guiana, carrying the SGDC and KOREASAT-7 relay platforms. The approval came at the completion of today’s Launch Readiness Review, which confirmed the “go” status of Ariane 5, its two payloads, the Spaceport launch infrastructure and the network of flight trajectory tracking stations. Th...
Sun, 19 Mar 2017 02:45:00 +0100
A United Launch Alliance (ULA) Delta IV rocket carrying the ninth Wideband Global SATCOM (WGS-9) satellite for the United States Air Force lifted off from Space Launch Complex-37 on March 18 at 8:18 p.m. EDT. "This launch commemorates the 70th anniversary of the USAF." said Laura Maginnis, ULA vice president of Government Satellite Launch. "We are absolutely honored to play a role in this important milestone, while safely delivering WGS-9 to orbit." This mission was launched aboard a Delta...
Sun, 19 Mar 2017 02:42:00 +0100
Boeing’s [NYSE: BA] ninth Wideband Global SATCOM (WGS) satellite launched into orbit today and will provide the United States and six allied nations with increased communications capabilities to prevent, protect against and respond to attacks. The WGS-9 satellite was funded through an agreement between the United States and Canada, Denmark, Luxembourg, the Netherlands and New Zealand, and will also serve Australia (which funded the WGS-6 satellite). Each partner country gains access t...
Fri, 17 Mar 2017 11:14:00 +0100
ESA astronaut Thomas Pesquet will make two more spacewalks under NASA's plans to maintain the International Space Station during his mission. Though intended for the end of March and April, the dates may change because the sorties require equipment yet to be launched on a Cygnus supply vessel. The first will see Thomas and NASA astronaut Shane Kimbrough head outside to install a new computer, work on the electrical power distribution system, and disconnect a docking adapter to allow its mo...
Thu, 16 Mar 2017 15:00:00 +0100
Demanding electric, magnetic and power requirements, harsh radiation, and strict planetary protection rules are some of the critical issues that had to be tackled in order to move ESA's Jupiter Icy Moons Explorer - Juice - from the drawing board and into construction. Scheduled for launch in 2022, with arrival in the Jovian system in 2029, Juice will spend three-and-a-half years examining the giant planet's turbulent atmosphere, enormous magnetosphere, its set of tenuous dark rings and its sa...
Thu, 16 Mar 2017 11:00:00 +0100
The ExoMars Trace Gas Orbiter has completed another set of important science calibration tests before a year of aerobraking gets underway. The mission was launched a year ago this week, and has been orbiting the Red Planet since 19 October. During two dedicated orbits in late November, the science instruments made their first calibration measurements since arriving at Mars. The latest tests were carried out 5-7 March from a different orbit, and included checking procedures associated with ...
More space news...
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    Personal information
     Name:<withheld>
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     Country:<withheld>
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    Contact information
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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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