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Tag: Global positioning systems

  • What to know about Russia’s GPS jamming operation in Europe

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    LONDON — Bulgaria will not investigate suspected Russian electronic interference with a top European official’s plane, officials said Monday — because this kind of GPS jamming is now so common.

    European Commission President Ursula von der Leyen was flying to Plovdiv, Bulgaria on Sunday when her plane was hit by GPS jamming. It landed safely but the disruption was the latest in a string of almost 80 incidents tracked by The Associated Press and blamed on Russia by Western officials since Moscow invaded Ukraine in 2022.

    This year, Nordic and Baltic nations — including Finland, Latvia, Lithuania and Estonia — have repeatedly warned about greater electronic interference from Russia disrupting communications with planes, ships and drones.

    While Russian authorities suggest the jamming is defensive — to protect key cities and military infrastructure from Ukrainian drone attacks — Baltic officials say the depth of electronic interference has increased, causing navigation failures far from Russia’s borders.

    In 2024, a plane carrying the British defense secretary had its satellite signal jammed as it flew near Russian territory, while a Finnish airline temporarily suspended flights to the Estonian city of Tartu.

    NATO Secretary-General Mark Rutte said the interference experienced by von der Leyen’s plane was part of a complex campaign by Russia against Europe which could have “potentially disastrous effects.”

    Satellite communications systems — known collectively as the Global Navigation Satellite System or GNSS — receive precise time signals from satellites around 20,000 kilometers (12,400 miles) away in space. A smartphone, car, marine or aircraft navigation system compares how long it takes to receive signals from several different satellites to calculate an exact location.

    But the signals can be interfered with — commonly known as jamming or spoofing.

    Jamming means a receiver is overwhelmed by a strong radio signal transmitted in the same range where GNSS and other satellite navigation signals operate, leaving the receiver unable to fix a location or time. Spoofing involves transmitting fake signals which imitate a real GNSS satellite signal — commonly known as GPS — to mislead a phone, ship or aircraft into thinking it is in a different place.

    In a military context, jamming could be used to stop an incoming missile or drone attack, whereas the idea behind spoofing is to “create deception,” said Thomas Withington, an expert in electronic warfare at the Royal United Services Institute in London.

    It’s possible that Israel used spoofing technology to fly into Iranian airspace in June, when it killed top generals and struck nuclear sites, Withington suggested. Spoofing, he said, could have helped Israel deceive Iranian radar.

    Long before the invasion of Ukraine, Russian authorities deployed spoofing technology around the Kremlin in Moscow, causing chaos for taxi drivers or other motorists using GPS.

    Russia “does not mind” if its own infrastructure is affected, as long as enemy activity is deterred, said Withington.

    In August, Latvia’s Electronic Communications Office said it had identified at least three hot spots for electronic interference along borders with Russia in the Kaliningrad, Leningrad and Pskov regions. All three regions host important Russian military bases.

    In April 2024, Finland’s national carrier Finnair temporarily suspended flights to Tartu, Estonia after it said two of its planes were prevented from landing because of GPS disruptions. At that time, Tartu airport required approaching planes to use GPS to land, although planes have — and use — other forms of navigation.

    These include radio navigation and Inertial Navigation Systems, which determine where an aircraft — or submarine — is located by measuring its position in the air or water without relying on GPS.

    Jamming and spoofing are common across the world and shouldn’t be a problem for pilots to deal with, said Withington. But they could impair decision-making at a time when other things are going wrong, he suggested.

    In December, Azerbaijan Airlines blamed a plane crash which killed 38 people on unspecified “physical and technical interference.”

    Azerbaijan said the aircraft was hit by fire from the ground over southern Russia and rendered uncontrollable by electronic warfare.

    Russian officials said that at the time the aircraft was preparing to land in Grozny, Ukrainian drones were targeting the area around the airport.

    Bulgarian Prime Minister Rosen Zhelyazkov said von der Leyen’s plane was not specifically targeted and called the jamming a “side effect” of the war in Ukraine.

    Latvia’s Electronic Communications Office said it recorded 820 cases of interference with satellite signals in 2024, compared to 26 in 2022, and warned that the areas affected have recently “expanded significantly.”

    In response, Baltic nations have banned drone flights in some areas near their borders with Russia and warned civilian drone pilots to assess signal stability before flying.

    Sweden’s Maritime Administration said it received multiple reports of signal interference with ships in the Baltic Sea this year and in June officially warned sailors to use radar or landmarks for navigation.

    In July, Lithuanian media reported that two German tourists accidentally flew a light aircraft into Russia and had to be guided back to Lithuania by experienced pilots.

    Several states have complained about the electronic interference to the International Civil Aviation Organization but Russian officials dismissed the complaints and suggested they were politically motivated.

    While jamming and spoofing were initially aimed at protecting Russian infrastructure, authorities have realized the tactics have a useful “second order of effect, which is that it creates disruption and disquiet among the nations President (Vladimir) Putin perceives as being his enemy,” said Withington.

    While countries along Russia’s border appear to have largely mitigated the impact of Russian jamming in the air, there is potential for a serious incident at sea.

    While sailors should rely on radar and charts, as well as GPS, to navigate, “anecdotal evidence” suggests some crews are “lazy,” and just rely on GPS, said Withington.

    In that case, he said, if a large cargo ship crashes, “potentially you could have a disaster on your hands.”

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  • US aims to stay ahead of China in using AI to fly fighter jets, navigate without GPS and more

    US aims to stay ahead of China in using AI to fly fighter jets, navigate without GPS and more

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    WASHINGTON — Two Air Force fighter jets recently squared off in a dogfight in California. One was flown by a pilot. The other wasn’t.

    That second jet was piloted by artificial intelligence, with the Air Force’s highest-ranking civilian riding along in the front seat. It was the ultimate display of how far the Air Force has come in developing a technology with its roots in the 1950s. But it’s only a hint of the technology yet to come.

    The United States is competing to stay ahead of China on AI and its use in weapon systems. The focus on AI has generated public concern that future wars will be fought by machines that select and strike targets without direct human intervention. Officials say this will never happen, at least not on the U.S. side. But there are questions about what a potential adversary would allow, and the military sees no alternative but to get U.S. capabilities fielded fast.

    “Whether you want to call it a race or not, it certainly is,” said Adm. Christopher Grady, vice chairman of the Joint Chiefs of Staff. “Both of us have recognized that this will be a very critical element of the future battlefield. China’s working on it as hard as we are.”

    A look at the history of military development of AI, what technologies are on the horizon and how they will be kept under control:

    AI’s roots in the military are actually a hybrid of machine learning and autonomy. Machine learning occurs when a computer analyzes data and rule sets to reach conclusions. Autonomy occurs when those conclusions are applied to take action without further human input.

    This took an early form in the 1960s and 1970s with the development of the Navy’s Aegis missile defense system. Aegis was trained through a series of human-programmed if/then rule sets to be able to detect and intercept incoming missiles autonomously, and more rapidly than a human could. But the Aegis system was not designed to learn from its decisions and its reactions were limited to the rule set it had.

    “If a system uses ‘if/then’ it is probably not machine learning, which is a field of AI that involves creating systems that learn from data,” said Air Force Lt. Col. Christopher Berardi, who is assigned to the Massachusetts Institute of Technology to assist with the Air Force’s AI development.

    AI took a major step forward in 2012 when the combination of big data and advanced computing power enabled computers to begin analyzing the information and writing the rule sets themselves. It is what AI experts have called AI’s “big bang.”

    The new data created by a computer writing the rules is artificial intelligence. Systems can be programmed to act autonomously from the conclusions reached from machine-written rules, which is a form of AI-enabled autonomy.

    Air Force Secretary Frank Kendall got a taste of that advanced warfighting this month when he flew on Vista, the first F-16 fighter jet to be controlled by AI, in a dogfighting exercise over California’s Edwards Air Force Base.

    While that jet is the most visible sign of the AI work underway, there are hundreds of ongoing AI projects across the Pentagon.

    At MIT, service members worked to clear thousands of hours of recorded pilot conversations to create a data set from the flood of messages exchanged between crews and air operations centers during flights, so the AI could learn the difference between critical messages like a runway being closed and mundane cockpit chatter. The goal was to have the AI learn which messages are critical to elevate to ensure controllers see them faster.

    In another significant project, the military is working on an AI alternative to GPS satellite-dependent navigation.

    In a future war high-value GPS satellites would likely be hit or interfered with. The loss of GPS could blind U.S. communication, navigation and banking systems and make the U.S. military’s fleet of aircraft and warships less able to coordinate a response.

    So last year the Air Force flew an AI program — loaded onto a laptop that was strapped to the floor of a C-17 military cargo plane — to work on an alternative solution using the Earth’s magnetic fields.

    It has been known that aircraft could navigate by following the Earth’s magnetic fields, but so far that hasn’t been practical because each aircraft generates so much of its own electromagnetic noise that there has been no way good to filter for just the Earth’s emissions.

    “Magnetometers are very sensitive,” said Col. Garry Floyd, director for the Department of Air Force-MIT Artificial Intelligence Accelerator program. “If you turn on the strobe lights on a C-17 we would see it.”

    The AI learned through the flights and reams of data which signals to ignore and which to follow and the results “were very, very impressive,” Floyd said. “We’re talking tactical airdrop quality.”

    “We think we may have added an arrow to the quiver in the things we can do, should we end up operating in a GPS-denied environment. Which we will,” Floyd said.

    The AI so far has been tested only on the C-17. Other aircraft will also be tested, and if it works it could give the military another way to operate if GPS goes down.

    Vista, the AI-controlled F-16, has considerable safety rails as the Air Force trains it. There are mechanical limits that keep the still-learning AI from executing maneuvers that would put the plane in danger. There is a safety pilot, too, who can take over control from the AI with the push of a button.

    The algorithm cannot learn during a flight, so each time up it has only the data and rule sets it has created from previous flights. When a new flight is over, the algorithm is transferred back onto a simulator where it is fed new data gathered in-flight to learn from, create new rule sets and improve its performance.

    But the AI is learning fast. Because of the super computing speed AI uses to analyze data, and then flying those new rule sets in the simulator, its pace in finding the most efficient way to fly and maneuver has already led it to beat some human pilots in dogfighting exercises.

    But safety is still a critical concern, and officials said the most important way to take safety into account is to control what data is reinserted into the simulator for the AI to learn from. In the jet’s case, it’s making sure the data reflects safe flying. Ultimately the Air Force hopes that a version of the AI being developed can serve as the brain for a fleet of 1,000 unmanned warplanes under development by General Atomics and Anduril.

    In the experiment training AI on how pilots communicate, the service members assigned to MIT cleaned up the recordings to remove classified information and the pilots’ sometimes salty language.

    Learning how pilots communicate is “a reflection of command and control, of how pilots think. The machines need to understand that too if they’re going to get really, really good,” said Grady, the Joint Chiefs vice chairman. “They don’t need to learn how to cuss.”

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  • Search continues for escaped Iowa teen who killed rapist

    Search continues for escaped Iowa teen who killed rapist

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    DES MOINES, Iowa — Authorities in Iowa continued to search Monday for an 18-year-old sex trafficking victim who walked away from a women’s shelter where she was serving probation after pleading guilty to killing a man she said raped her.

    An arrest warrant was issued for Pieper Lewis, who was seen walking out of the Fresh Start Women’s Center in Des Moines shortly after 6:15 a.m. Friday, according to a report filed with the court by a probation officer and the shelter’s residential supervisor. The report said Lewis cut off the GPS monitor she was ordered to wear as part of her sentence before she left the facility.

    Lewis’ public defense attorney did not immediately respond Monday to messages.

    Iowa Department of Corrections spokesman Nick Crawford said Lewis had not been located as of Monday afternoon.

    Des Moines Police spokesman Paul Parizek said police were notified by state corrections officials that Lewis had walked away from the shelter and information was broadcast to officers to watch for her. He said she will be taken into custody if found and turned over to corrections officials.

    Polk County Judge David Porter sentenced Lewis in September to probation for five years to be served at the women’s shelter. He also gave her a deferred judgement, which meant her conviction would be expunged from her record if she completed the requirements of her probation. Porter warned Lewis at her sentencing hearing that by affording her an opportunity to avoid prison he was giving her a second chance. “You don’t get a third,” he said.

    Lewis had faced a 20-year prison sentence after pleading guilty last year to involuntary manslaughter and willful injury in the June 2020 killing of 37-year-old Zachary Brooks, a married father of two. Lewis was 15 when she stabbed Brooks more than 30 times in a Des Moines apartment.

    Corrections officials have asked the court to hold a hearing on their request to revoke her probation and deferred judgment and send her to prison.

    Lewis has said that she was trafficked against her will to Brooks for sex multiple times and stabbed him in a fit of rage after he forced her to have sex with him again. Police and prosecutors did not dispute that Lewis was sexually assaulted and trafficked. The man she accused of forcing her to have sex with men, including Brooks, has never been charged.

    Court documents indicate Lewis was allowed to leave the women’s shelter to work at a local pizza restaurant. However, the documents showed, since Oct. 13 seven incidents were noted in which she did not promptly return to the shelter from work, a violation of shelter rules. The filings indicate authorities were keeping a close eye on her movements through the GPS monitor. Other violations also were noted, including an unauthorized meeting with someone she had dated in high school.

    The 48-bed shelter is in a neighborhood northwest of downtown Des Moines. It is operated by the Department of Corrections for women on parole, work release or on pretrial release.

    Porter also had ordered Lewis to pay $150,000 restitution to Brooks’ estate, a move many people found to be outrageous. Porter said Iowa law required the restitution. Court records show Lewis’ lawyer has asked the judge to reconsider and Porter ordered lawyers to file briefs on the issue by Nov. 10. He indicated he would release a decision within 30 days.

    Lewis’ public defense lawyer Matthew Sheeley wrote in a document filed in September after Lewis’ sentencing hearing that her 28-year-old sex-trafficker put a knife to her neck and forced her to go with Zachary Brooks “to ‘turn a trick’ for $50 worth of weed.” He said the seriousness of her offense should be diminished by the fact that Brooks raped her before she stabbed him.

    Sheeley asked Porter to amend his judgment and find that the restitution order is excessive and violates her constitutional rights.

    A GoFundMe campaign started by a high school teacher who taught Lewis has raised over $560,000. No new donations were being accepted, according to the site.

    The teacher, Leland Schipper, told The Des Moines Register that he has not been in contact with Lewis since her sentencing in September and that he is heartbroken that she has left the shelter and is concerned about her safety. He said the money remains with the GoFundMe organization and he and Lewis do not have access to it.

    Court records indicate the restitution has not yet been paid.

    The Associated Press does not typically name victims of sexual assault, but Lewis agreed to have her name used previously in stories about her case.

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  • Alaska-Australia flight could place bird in record books

    Alaska-Australia flight could place bird in record books

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    CANBERRA, Australia — A young bar-tailed godwit appears to have set a non-stop distance record for migratory birds by flying at least 13,560 kilometers (8,435 miles) from Alaska to the Australian state of Tasmania, a bird expert said Friday.

    The bird was tagged as a hatchling in Alaska during the Northern Hemisphere summer with a tracking GPS chip and tiny solar panel that enabled an international research team to follow its first annual migration across the Pacific Ocean, Birdlife Tasmania convenor Eric Woehler said. Because the bird was so young, its gender wasn’t known.

    Aged about five months, it left southwest Alaska at the Yuko-Kuskokwim Delta on Oct. 13 and touched down 11 days later at Ansons Bay on the island of Tasmania’s northeastern tip on Oct. 24, according to data from Germany’s Max Plank Institute for Ornithology. The research has yet to be published or peer reviewed.

    The bird started on a southwestern course toward Japan then turned southeast over Alaska’s Aleutian Islands, a map published by New Zealand’s Pukoro Miranda Shorebird Center shows.

    The bird was again tracking southwest when it flew over or near Kiribati and New Caledonia, then past the Australian mainland before turning directly west for Tasmania, Australia’s most southerly state. The satellite trail showed it covered 13,560 kilometers (8,435 miles) without stopping.

    “Whether this is an accident, whether this bird got lost or whether this is part of a normal pattern of migration for the species, we still don’t know,” said Woehler, who is part of the research project.

    Guinness World Records lists the longest recorded migration by a bird without stopping for food or rest as 12,200 km (7,580 miles) by a satellite-tagged male bar-tailed godwit flying from Alaska to New Zealand.

    That flight was recorded in 2020 as part of the same decade-old research project, which also involves China’s Fudan University, New Zealand’s Massey University and the Global Flyway Network.

    The same bird broke its own record with a 13,000-kilometer (8,100-mile) flight on its next migration last year, researchers say. But Guinness has yet to acknowledge that feat.

    Woehler said researchers did not know whether the latest bird, known by its satellite tag 234684, flew alone or as part of a flock.

    “There are so few birds that have been tagged, we don’t know how representative or otherwise this event is,” Woehler said.

    “It may be that half the birds that do the migration from Alaska come to Tasmania directly rather than through New Zealand or it might be 1%, or it might be that this is the first it’s ever happened,” he added.

    Adult birds depart Alaska earlier than juveniles, so the tagged bird was unlikely to have followed more experienced travelers south, Woehler said.

    Woehler hopes to see the bird once wet weather clears in the remote corner of Tasmania, where it will fatten up having lost half its body weight on its journey.

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