Russia's New Fighter Breaks Cover'€”It's Got 'Stealth' Written All Over It

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  August 8, 2019 | International, Aerospace

  Army interested in iPad-sized satellite terminals

  By: Nathan Strout The Army is interested in a new commercial satellite service with a focus on small, mobile terminals. According to a July 2 request for information, the Army wants to expand beyond line-of-sight communications capabilities for tactical users with a new commercial satellite service. The proposed network would put small terminals, slightly bigger than the larger iPad Pro, in the hands of soldiers in the field, allowing them to communicate via a low earth orbit or medium earth orbit constellation. John Swart, the director of the Army's Technology Applications Office, said that the Army was simply interested in learning more from industry. He declined to provide further comment. The Army currently relies on a combination of military and commercial satellites for beyond line-of-sight communications, but satellite coverage and the size of terminals can limit their availability. The suggested satellite service would provide the Army with global coverage, excluding the polar regions. Part of the benefit of using LEO or even MEO satellites is that they reduce the need for larger, bulkier terminals. Since they are closer to Earth, users need less powerful terminals to communicate with the satellites. That means the terminals can be physically smaller, and that's a key focus of the request. The Army wants the commercial satellite service provider to supply troops with so-called “ultra sat terminals” ― basically small terminals 12 inches by 12 inches. Ideally, the Army wants terminals for aircraft, vehicles and dismounts that are small enough to fit in a rucksack, although airborne terminals can be larger. These terminals would preferably be able to switch between satellites as they move from coverage area to coverage area, allowing for uninterrupted service. Broadly, Department of Defense leaders have said that as they develop new satellite architectures they will have face a significant expense in replacing legacy terminals that are not compatible with modern satellites. While the service said it is willing to obtain the satellite services and terminals from different suppliers, they would prefer to go with one provider. It's not clear from the request how many terminals the Army would be interested in acquiring. Responses to the request were due July 31. https://www.c4isrnet.com/battlefield-tech/c2-comms/2019/08/07/army-interested-in-ipad-sized-satellite-terminals/

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  January 16, 2020 | International, C4ISR

  The Pentagon wants help for its satellites to talk to each other

  By: Nathan Strout The Space Development Agency wants its satellites to be able to easily talk to each other and is considering using optical intersatellite links for communications within its future low earth orbit space architecture. Now, the organization is looking for industry's help on what standards should be used for those links. On Jan. 15, the agency issued a request for information to industry to inform its attempt to establish an Optical Intersatellite Link Open Standard. Most satellites don't speak with each other directly. Instead, they utilize radio-frequency communications with a ground station to relay communications between satellites. Some satellites, however, are able to use optical links to provide direct communications between satellites without a ground station acting as an intermediary. The SDA wants to use this technology for what it calls its “transport layer,” the backbone of its plans for a new space architecture in low earth orbit. The SDA was established in March 2019 to design the Department of Defense's future threat-driven space architecture, a setup it has since defined as a multi-layered constellation of hundreds of small satellites providing several capabilities from LEO. The SDA will not be directly responsible for every layer or constellation within the architecture — most notably, the Hypersonic and Ballistic Tracking Space Sensor is being developed primarily by the Missile Defense Agency — however, the SDA will be the agency in charge of integrating those various efforts into a single architecture. Key to the entire enterprise is the Tracking Layer, a family of satellites in low earth orbit that will facilitate the flow of data between satellites in orbit and between satellites and the ground. The Transport Layer will be essential in connecting the various sensors and capabilities on orbit with weapons systems on the ground or in the air. In order to build that capability, the SDA plans to use Optical Intersatellite Links. The optical links will also need to provide range estimates of the distance between satellites in orbit and between satellites and the ground to within a meter in order to provide highly precise timing and positional data for the constellation. The SDA also envisions each satellite utilizing a chip-scale atomic clock as well as GPS signals. The problem is that there are currently no industry standards for those links. To ensure the interoperability of various vendor technologies used for those links, the SDA wants to establish that standard, and it's asking industry for help. Responses are due by Feb. 5. More specifics about what the SDA is considering for its standards is available on beta.sam.gov. According to the request, the SDA plans to issue a solicitation for Tranche 0 of the Transportation Layer in Spring 2020, with additional solicitations for the other capability layers to follow in the summer. That first tranche, known as the war fighter immersion tranche, will consist “of tens of satellites providing periodic, regional sensing and data transport capabilities, including the capability to detect hypersonic glide vehicles and to disseminate time sensitive targeting solutions over tactical data links.” According to the agency, that initial tranche could be delivered as early as fiscal year 2022 https://www.c4isrnet.com/battlefield-tech/c2-comms/2020/01/16/the-pentagon-wants-help-for-its-satellites-to-talk-to-each-other/

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  March 17, 2021 | International, Aerospace, Naval, Land, C4ISR, Security

  Contracts for March 16, 2021

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