{"id":34196,"date":"2024-06-12T18:03:05","date_gmt":"2024-06-12T18:03:05","guid":{"rendered":"https:\/\/one.sightlinemg.com\/c4isrnet\/uncategorized\/2024\/06\/12\/space-forces-resilient-gps-program-draws-skepticism-from-lawmakers\/"},"modified":"2026-08-08T18:23:54","modified_gmt":"2026-08-08T18:23:54","slug":"space-forces-resilient-gps-program-draws-skepticism-from-lawmakers","status":"publish","type":"post","link":"https:\/\/one.sightlinemg.com\/c4isrnet\/space\/2024\/06\/12\/space-forces-resilient-gps-program-draws-skepticism-from-lawmakers\/","title":{"rendered":"Space Force\u2019s Resilient GPS program draws skepticism from lawmakers"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">A congressional appropriations panel cast some doubt on whether a U.S. Space Force effort to protect its GPS system from signal jamming will be as resilient as the service hopes.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The Space Force said in February it was <a href=\"https:\/\/www.c4isrnet.com\/battlefield-tech\/space\/2024\/02\/09\/space-force-may-launch-gps-demonstration-satellites-to-test-new-tech\/\" target=\"_blank\">considering launching a constellation of small navigation satellites<\/a> to augment the 31 GPS satellites now in orbit. The premise of the effort, dubbed Resilient GPS, would be to provide an additional layer of capability through a fleet of more affordable and smaller spacecraft.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">But the House Appropriations defense subcommittee isn\u2019t sold on the idea that flying more GPS satellites will inherently boost resiliency, and its proposed fiscal 2025 defense spending bill raises questions about the Space Force\u2019s plan.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u201cWhile proliferation may provide some advantages, it is not clear how these additional satellites increase the resilience against the primary jamming threat to GPS, compared to alternative concepts for position, navigation, and timing systems being pursued elsewhere in the Department of Defense,\u201d lawmakers said in a report accompanying the bill, released June 12.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The Pentagon has become increasingly concerned about GPS signals \u2014 used to guide weapons and help troops navigate difficult terrain \u2014 <a href=\"https:\/\/www.c4isrnet.com\/electronic-warfare\/2024\/03\/15\/uk-defense-ministers-plane-has-gps-jammed-near-russian-territory\/\" target=\"_blank\">being jammed or spoofed<\/a> by adversaries. Russia has taken advantage of this vulnerability in Ukraine, using electronic warfare to jam signals on a regular basis.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The Air Force announced in April <a href=\"https:\/\/www.c4isrnet.com\/battlefield-tech\/space\/2024\/04\/16\/air-force-to-get-a-head-start-on-gps-target-tracking-efforts\/\" target=\"_blank\">it would use authority from Congress<\/a> to shift unused funds from elsewhere in the Space Force\u2019s budget to begin development on Resilient GPS. Those authorities, known as quick-start, were approved in the Fiscal 2024 National Defense Authorization Act and allow the Defense Department to reprogram up to $100 million in funding to start high-priority programs before they are approved as part of a formal budget cycle.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">According to the subcommittee, the department has since notified Congress it expects the Resilient GPS program to cost $1 billion over the next five years. To date, the Space Force has repurposed $40 million in fiscal 2023 funding for the effort and, since it didn\u2019t include the program in its FY25 budget, has asked lawmakers to realign another $77 million toward Resilient GPS in that year\u2019s appropriation.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In its proposed bill, the subcommittee denied the service\u2019s request to realign FY25 funding, questioning whether the quick-start process was the best pathway for this effort. Lawmakers note that the service could have requested funding for Resilient GPS as part of its budget submission rather than rely on Congress to approve multiple funding shifts to support the effort.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Further, the subcommittee notes that the program seems to focus on the satellites without addressing how it would alter ground systems and user equipment to improve resilience. The Space Force has said the goal is for the spacecraft to be interoperable with existing user devices.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">To shed more light on the viability of the service\u2019s plan, the subcommittee directs the Pentagon\u2019s Cost Assessment and Program Evaluation office to assess whether the effort is the department\u2019s best option for boosting the resiliency of its positioning, navigation and timing capabilities.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Lawmakers say the Space Force&#8217;s plan to use proliferation to boost GPS resiliency may be 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