Tech

April 18, 2014

Phoenix makes strides in orbital robotics, satellite architecture research

darpa-phoenix1
The process of designing, developing, building and deploying satellites is long and expensive. Satellites today cannot follow the terrestrial paradigm of “assemble, repair, upgrade, reuse,” and must be designed to operate without any upgrades or repairs for their entire lifespan—a methodology that drives size, complexity and ultimately cost.

These challenges apply especially to the increasing number of satellites sent every year into geosynchronous Earth orbit, approximately 22,000 miles above the Earth. Unlike objects in low Earth orbit, such as the Hubble Space Telescope, satellites in GEO are essentially unreachable with current technology.

DARPA created the Phoenix program to help address these daunting challenges. Phoenix seeks to change the current paradigm by enabling GEO robotics servicing and asset life extension, while developing new satellite architectures to reduce the cost of space-based systems. Specifically, Phoenix’s goal is to develop and demonstrate technologies that make it possible to inspect and robotically service cooperative space systems in GEO and to validate new satellite assembly architectures. Phoenix has achieved promising Phase 1 results and has awarded eight companies prime contracts for its Phase 2 efforts.

“Phase 1 not only showed the feasibility of our robotic tools and assembly techniques, but also validated the concept that we could build new satellites on orbit by physically aggregating satlets in space,” said David Barnhart, DARPA program manager. “These successes could eventually lead to the revolutionary ability to create new, truly scalable space systems on orbit at a fraction of current costs.”

Phoenix’s Phase 2 efforts plan to focus on developing technologies in three primary technical areas of research:

o Advanced GEO space robotics: DARPA is developing a variety of robotics technologies to address key on-orbit mission needs, including assembly, repair, asset life extension, refueling, etc., in the harsh environment of geosynchronous orbit. Development activities include the maturation of robotic arms and multiple generic and mission-specific tools.\

These technologies would be part of a future robotic assembly platform, the Servicer/Tender.

* Satlets: A new low-cost, modular satellite architecture that can scale almost infinitely. Satlets are small independent modules (roughly 15 pounds/7 kg) that incorporate essential satellite functionality (power supplies, movement controls, sensors, etc.). Satlets share data, power and thermal management capabilities.

darpa-phoenix2

Satlets also physically aggregate (attach together) in different combinations that would provide capabilities to accomplish a range of diverse space missions with any type, size or shape payload. Because they are modular, they can be produced on an assembly line at low cost and integrated very quickly with different payloads. DARPA is presently focused on validating the technical concept of satlets in LEO.

* Payload Orbital Delivery (POD) system: The POD would be a standardized mechanism designed to safely carry a wide variety of separable mass elements to orbit—including payloads, satlets and electronics—aboard commercial communications satellites. This approach would take advantage of the tempo and “hosted payload” services that commercial satellites now provide while enabling lower-cost delivery to GEO. DARPA is also pursuing a possible risk-reduction flight to validate the POD technology, which could eventually provide “‘FedEx®’ to GEO” capabilities to make future space deliveries to high orbit much easier and faster.

“Individually or together, these technologies could help enable not just Phoenix’s original concept of re-use, but a broad class of other robotically enabled missions at GEO as well,” Barnhart said. “They could help satellites reach new or proper orbits, inspect satellites as part of routine maintenance or troubleshooting efforts, repair or replace worn-out components, or add or upgrade capabilities. These capabilities would enable space systems, for the first time, to have the flexibility, accessibility and resilience that designers of terrestrial systems take for granted.”

DARPA has awarded prime contracts for Phase 2 of Phoenix to the following companies:

* Busek

* Energid Inc.

* Honeybee Robotics

* MacDonald, Dettwiler and Associates Ltd.-Canada

* MacDonald, Dettwiler and Associates Ltd.-U.S.

* NovaWurks

* Oceaneering Inc.

* Space Systems/Loral




All of this week's top headlines to your email every Friday.


 
 

 

Headlines August 1, 2015

News: Marine F-35 jets deemed ready for combat – A small batch of the highly anticipated – and much criticized – F-35B Joint Strike Fighter jets have been approved for combat by the U.S. Marine Corps.   News: Reports: China to sell J-10 fighter to Iran, Syria? – Iran is rumored external link to be buying 150...
 
 

News Briefs August 3, 2015

Russian military helicopter crashes during air show, one dead A Russian military helicopter crashed Aug. 2 during an aerobatic display, killing one of its crewmembers and injuring another, the Defense Ministry said. The Mi-28 helicopter gunship was part of a flight of helicopters performing aerobatics at the Dubrovichi firing range in Ryazan region, about 170...
 
 
Army photograph by John Andrew Hamilton

Improved Multiple Launch Rocket System tested at White Sands Missile Range

Army photograph by John Andrew Hamilton A Multiple Launch Rocket System with an improved armored cab fires a training rocket during a test. The rockets were simple training rockets and not equipped with a warhead, but still gen...
 

 

Missile Defense Agency, Raytheon demonstrate SM-6’s new anti-ballistic missile defense capability

In a first-of-its-kind test, the U.S. Navy fired a Raytheon Standard Missile-6, intercepting and destroying a short-range ballistic missile target at sea. The successful U.S. Missile Defense Agency test proved a modified SM-6 can eliminate threat ballistic missiles in their final seconds of flight. “SM-6 is the only missile in the world that can do...
 
 

Northrop Grumman-developed stealthy data link validated as combat ready with U.S. Marine Corps

the U.S. Marine Corps achieving F-35B initial operating capability, the Multifunction Advanced Data Link waveform developed by Northrop Grumman has been proven a key combat-ready capability of the F-35 Lightning II program. MADL is a high-data-rate, directional communications link that allows fifth-generation aircraft to communicate and coordinate tactics covertly. During testing of the Lockhee...
 
 

Lockheed Martin technology helps pilots, UAS operators share data, stay safe

As Unmanned Aircraft Systems take to the skies, it is essential for safety that UAS operators and pilots are aware of each other. To help provide this shared situational awareness, Lockheed Martin has deployed the first components of a UAS traffic management system that is available to the UAS community now. Lockheed Martin’s online Flight...
 




0 Comments


Be the first to comment!


Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>