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Archive for the ‘satellites’ category: Page 39

May 10, 2016

DARPA is building acoustic GPS for submarines and UUVs

Posted by in categories: government, military, mobile phones, satellites

A new underwater GPS.


For all the benefits that the Global Positioning System provides to landlubbers and surface ships, GPS signals can’t penetrate seawater and therefore can’t be used by oceangoing vehicles like submarines or UUVs. That’s why DARPA is creating an acoustic navigation system, dubbed POSYDON (Positioning System for Deep Ocean Navigation), and has awarded the Draper group with its development contract.

The space-based GPS system relies on a constellation of satellites that remain in a fixed position relative to the surface of the Earth. The GPS receiver in your phone or car’s navigation system triangulates the signals it receives from those satellites to determine your position. The POSYDON system will perform the same basic function, just with sound instead. The plan is to set up a small number of long-range acoustic sources that a submarine or UUV could use to similarly triangulate its position without having to surface.

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Apr 30, 2016

IRNSS: Desi GPS to liberate India from dependence on US, Russia

Posted by in category: satellites

India frees itself from the US & Russian GPS system.


Back home, the mission control room of Indian Space Research Organisation(ISRO) resonated with thunderous applause. The scientists who were till then glued to their monitors burst into cheers. India’s mini GPS, a regional positioning system, was ready to be rolled out.

Prime minister Narendra Modi who was watching the launch live from his office in Delhi congratulated the scientists. “With this successful launch, we will determine our own paths powered by our technology. This is an example of made in India and made for Indians,” he said. The navigational structure was given a new name — NavIC (Navigation Indian Constellation) — by the prime minister. “125 crore Indians have got a new Navic,” he tweeted.

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Apr 28, 2016

Technology moving too fast for governments to keep up, says former DARPA chief

Posted by in categories: drones, encryption, government, internet, military, satellites

Hmmm; I guess the government needs to change its mode of operations. I believe that everyone has been saying this for a while now.


Technology companies are moving too fast for governments to keep up, according to a former chief of the US Defense Advanced Research Projects Agency (DARPA).

Kaigham (Ken) Gabriel was acting director of DARPA and the man behind drone technology and global positioning satellites, as well as the military’s top secret, high-tech operation responsible for inventing the forerunner to the internet, Arpanet.

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Apr 25, 2016

DARPA to service satellites in space

Posted by in categories: energy, military, robotics/AI, satellites

DARPA plans to service orbiting satellites.Satellites operators have been longing for it for decades, and DARPA (once again?) is turning their dream into reality: on March 25, one of America’s most futuristic agency announced it would launch a public-private partnership to provide in-orbit servicing to geosynchronous satellites, both commercial and military.

The program dubbed Robotic Servicing of Geosynchronous Satellites (RSGS) will be a major breakthrough for the satellite industry world. Since Sputnik’s launch, the biggest weakness of satellites was that, once on orbit, nothing could be done if something went wrong or once the fuel tank ran dry. A rather embarrassing issue when considering how pricey such platforms are. The only maintenance and repair operations performed to date were manned (Hubble telescope, ISS). The agency announced that it would allocate RSGS $500mn over the next few years, supplemented by commercial partner investment.

DARPA’s RSGS is composed of two elements: the arm that will dock and manipulate the satellite, and the space ship carrying it. Regarding the first element, the agency will provide its Front-end Robotics Enabling Near-term Demonstration (FREND) technology. The prototype of the FREND arm was built for the agency by the California-based company Alliance Space Systems. The robotic arm will enable it to dock with satellites and carry out maintenance.

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Apr 23, 2016

WTF Was That Thing Near the International Space Station?

Posted by in categories: alien life, mathematics, media & arts, satellites

“The station regularly passes out of range of the Tracking and Relay Data Satellites (TDRS) used to send and receive video, voice and telemetry from the station,” a spokesperson for NASA told ValueWalk.

The only problem with this explanation, of course, is that it’s so much more boring…”

It is, of course, highly unlikely that this was some alien ship. That said, those tracking and relay stations are fixed and known locations. Also, the range and power of the ISS communication systems are well known, non-classified public domain knowledge. I suck at math, but it should only be a matter of taking the exact time and duration of this outage and comparing it to the tracking and relay station stats.

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Apr 22, 2016

NASA seeks industry ideas for an advanced Mars satellite | Phys.org

Posted by in categories: satellites, space, space travel

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“NASA is soliciting ideas from U.S. industry for designs of a Mars orbiter for potential launch in the 2020s. The satellite would provide advanced communications and imaging, as well as robotic science exploration, in support of NASA’s Journey to Mars.”

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Apr 18, 2016

Report: One Web to Build Satellites in Florida

Posted by in category: satellites

Space tourism … and much more.

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Apr 10, 2016

Google Invents Global Communications Satellite Constellation that could protect users from Wire Taps & Beyond

Posted by in categories: robotics/AI, satellites

Although Google has been filing patents for the design of an advanced high-altitude balloon network for some time now (examples one and two) and CEO Larry Page talking up Project Loon with Charlie Rose at a TED Conference, it appears that they’re simultaneously dreaming of another Moon Shot project related to a communications satellite constellation wrapped around the globe.

In 2014 Google signed a 60 year lease with NASA airfield and hangers. The Verge reported at that time that “Google may use Hangar One, as well as two sequentially named hangars on the airfield, as a space for research, development, assembly, and testing of technology related to robotics, aviation, space exploration, and other new fields once it moves in. Perhaps Google’s recent patent application discovered at the US Patent Office for a new satellite constellation is one of the many projects that they have on their drawing board.

Google’s patent FIG. 1B noted below shows us a schematic view of exemplary orbital paths or trajectories of the satellites in their proposed system.

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Apr 8, 2016

SpaceX successfully lands its rocket on a floating drone ship for the first time

Posted by in categories: drones, satellites

SpaceX has finally landed its Falcon 9 rocket on a drone ship at sea, after launching the vehicle into space this afternoon. It’s the first time the company has been able to pull off an ocean landing, after four previous attempts ended in failure. Today’s success is a crucial milestone for SpaceX, as it shows the company can land its rockets both on solid ground and ocean.

This is the second time SpaceX has successfully landed one of its rockets post-launch; the first time was in December, when the company’s Falcon 9 rocket touched down at a ground-based landing site in Cape Canaveral, Florida, after putting a satellite into space. Now that SpaceX has demonstrated it can do both types of landings, the company can potentially recover and reuse even more rockets in the future. And that could mean much greater cost savings for SpaceX.

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Apr 6, 2016

Modernizing Manufacturing: How to Build the Satellite of the Future

Posted by in categories: futurism, satellites

Satellite manufacturing today is a lengthy, meticulous process; its high tech nature, and the cost in time and money make advances slow compared to sectors like the mobile industry. But an explosion in demand for connectivity and other space services is driving the need for ever-more capable satellites. It is at this crossroads, that bold new ideas are being forged.

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