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Listening for the right radio signals could be an effective way to track small drones
Unidentified drone sightings near sensitive U.S. locations raise public concern. Challenges exist in tracking these drones, necessitating better detection methods and potential regulatory changes for airspace management.
Iain Boyd, University of Colorado Boulder
The recent spate of unidentified drone sightings in the U.S., including some near sensitive locations such as airports and military installations, has caused significant public concern.
Some of this recent increase in activity may be related to a September 2023 change in U.S. Federal Aviation Administration regulations that now allow drone operators to fly at night. But most of the sightings are likely airplanes or helicopters rather than drones.
The inability of the U.S. government to definitively identify the aircraft in the recent incidents, however, has some people wondering, why can’t they?
I am an engineer who studies defense systems. I see radio frequency sensors as a promising approach to detecting, tracking and identifying drones, not least because drone detectors based on the technology are already available. But I also see challenges to using the detectors to comprehensively spot drones flying over American communities.
How drones are controlled
Operators communicate with drones from a distance using radio frequency signals. Radio frequency signals are widely used in everyday life such as in garage door openers, car key fobs and, of course, radios. Because the radio spectrum is used for so many different purposes, it is carefully regulated by the Federal Communications Commission.
Drone communications are only allowed in narrow bands around specific frequencies such as at 5 gigahertz. Each make and model of a drone uses unique communication protocols coded within the radio frequency signals to interpret instructions from an operator and to send data back to them. In this way, a drone pilot can instruct the drone to execute a flight maneuver, and the drone can inform the pilot where it is and how fast it is flying.
Identifying drones by radio signals
Radio frequency sensors can listen in to the well-known drone frequencies to detect communication protocols that are specific to each particular drone model. In a sense, these radio frequency signals represent a unique fingerprint of each type of drone.
In the best-case scenario, authorities can use the radio frequency signals to determine the drone’s location, range, speed and flight direction. These radio frequency devices are called passive sensors because they simply listen out for and receive signals without taking any active steps. The typical range limit for detecting signals is about 3 miles (4.8 kilometers) from the source.
These sensors do not represent advanced technology, and they are readily available. So, why haven’t authorities made wider use of them? https://www.youtube.com/embed/9yFzdpEqQCs?wmode=transparent&start=0 Drones were all the buzz in the Northeast at the end of 2024.
Challenges to using radio frequency sensors
While the monitoring of radio frequency signals is a promising approach to detecting and identifying drones, there are several challenges to doing so.
First, it’s only possible for a sensor to obtain detailed information on drones that the sensor knows the communication protocols for. Getting sensors that can detect a wide range of drones will require coordination between all drone manufacturers and some central registration entity.
In the absence of information that makes it possible to decode the radio frequency signals, all that can be inferred about a drone is a rough idea of its location and direction. This situation can be improved by deploying multiple sensors and coordinating their information.
Second, the detection approach works best in “quiet” radio frequency environments where there are no buildings, machinery or people. It’s not easy to confidently attribute the unique source of a radio frequency signal in urban settings and other cluttered environments. Radio frequency signals bounce off all solid surfaces, making it difficult to be sure where the original signal came from. Again, the use of multiple sensors around a particular location, and careful placement of those sensors, can help to alleviate this issue.
Third, a major part of the concern over the inability to detect and identify drones is that they may be operated by criminals or terrorists. If drone operators with malicious intent know that an area targeted for a drone operation is being monitored by radio frequency sensors, they may develop effective countermeasures. For example, they may use signal frequencies that lie outside the FCC-regulated parameters, and communication protocols that have not been registered. An even more effective countermeasure is to preprogram the flight path of a drone to completely avoid the use of any radio frequency communications between the operator and the drone.
Finally, widespread deployment of radio frequency sensors for tracking drones would be logistically complicated and financially expensive. There are likely thousands of locations in the U.S. alone that might require protection from hostile drone attacks. The cost of deploying a fully effective drone detection system would be significant.
There are other means of detecting drones, including radar systems and networks of acoustic sensors, which listen for the unique sounds drones generate. But radar systems are relatively expensive, and acoustic drone detection is a new technology.
The way forward
It was almost guaranteed that at some point the problem of unidentified drones would arise. People are operating drones more and more in regions of the airspace that have previously been very sparsely populated.
Perhaps the recent concerns over drone sightings are a wake-up call. The airspace is only going to become much more congested in the coming years as more consumers buy drones, drones are used for more commercial purposes, and air-taxis come into use. There’s only so much that drone detection technologies can do, and it might become necessary for the FAA to tighten regulation of the nation’s airspace by, for example, requiring drone operators to submit detailed flight plans.
In the meantime, don’t be too quick to assume those blinking lights you see in the night sky are drones.
Iain Boyd, Director of the Center for National Security Initiatives and Professor of Aerospace Engineering Sciences, University of Colorado Boulder
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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New Jersey Drone Sightings: Unraveling the Mystery
In recent weeks, New Jersey has increasingly found itself under the watchful eye of mysterious drones. These sightings have captivated residents and officials alike, leading to widespread speculation and calls for action. Below is a comprehensive update on the current situation regarding drone sightings in the Garden State, including insights from government officials and community reactions.
The Surge of Sightings
Reports of large drones—up to six feet in diameter—flying over various regions of New Jersey have surged since mid-November. Assemblywoman Dawn Fantasia highlighted the unusual characteristics of these drones, often flying with their lights off and evading detection by traditional methods. Though the origin and purpose of these drones remain unclear, many are convinced that they are not the product of hobbyists.
Notably, many sightings have been concentrated near sensitive locations such as the Picatinny Arsenal, a U.S. military research facility, and Trump National Golf Club in Bedminster. Concerns have only intensified since these drones seem to be operating outside the realm of normal commercial or recreational use.
Government Investigations and Assurances
Federal and state law enforcement agencies, including the FBI and the Department of Homeland Security (DHS), have become actively involved in investigating these sightings. Despite receiving over 5,000 tips, officials state that there is currently no evidence suggesting that these drones pose a threat to national security or public safety. Instead, authorities believe that many of the reported sightings can be attributed to legal drones and other aerial phenomena, including misidentified manned aircraft and even celestial bodies like stars.
Governor Phil Murphy has reinforced this perspective, emphasizing that while drone sightings have raised valid concerns, there’s no immediate threat to public safety. The governor has called for federal assistance in the investigation and urged Congress to empower states with more authority to manage drone activities.
Congressional Response and Public Sentiment
The situation has sparked a debate among lawmakers, with some calling for stricter regulations or even a temporary ban on drone flights in New Jersey. Notably, two congressional representatives have gone so far as to request that the military intervene, highlighting the urgency felt by some constituents. U.S. Rep. Jeff Van Drew even suggested that a foreign entity could be behind the sightings, a theory that has been categorically denied by federal officials.
Public sentiment varies significantly, with many residents expressing concerns about the unknown nature of these drones. James Edwards from Succasunna has pointed out the anxiety gripping the community, noting, “There’s so much that’s unknown,” and calling for a measured response to the sightings.
The View from Washington
At the national level, President Joe Biden has responded to the growing unease, asserting that there is nothing nefarious behind the drone sightings. He emphasized the lawful presence of over one million registered drones operating across the country and assured the public that the situation is being closely monitored.
John Kirby, the White House National Security Advisor, reiterated that the majority of drone sightings do not indicate a coordinated threat and stem from common commercial, hobbyist, or law enforcement operations.
What Lies Ahead?
As investigations continue, officials stress the importance of discerning legitimate threats from unwarranted fears. The situation remains fluid, with ongoing dialogues both in Trenton and Washington to address public concerns and craft appropriate regulatory responses.
While the mystery of the New Jersey drones deepens, it’s vital for residents to remain calm and informed. As the investigation unravels the truths behind these sightings, a collective effort from the community, lawmakers, and federal agencies can help ensure safety and transparency in the skies above New Jersey.
Stay tuned for updates as this story continues to evolve, and be sure to report any new sightings or information to the appropriate authorities. Together, we can navigate the complexities of drone activity in our airspace while embracing this new technological frontier.
Related Link:
https://apnews.com/article/drones-new-jersey-what-to-know-e6f565f5d51d9d47ad140e7e7d131842
STM Daily News is a vibrant news blog dedicated to sharing the brighter side of human experiences. Emphasizing positive, uplifting stories, the site focuses on delivering inspiring, informative, and well-researched content. With a commitment to accurate, fair, and responsible journalism, STM Daily News aims to foster a community of readers passionate about positive change and engaged in meaningful conversations. Join the movement and explore stories that celebrate the positive impacts shaping our world.
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The apocalypse that wasn’t: AI was everywhere in 2024’s elections, but deepfakes and misinformation were only part of the picture
In 2024, AI significantly influenced elections globally, aiding communication and fundraising while generating concerns about misinformation, yet its harmful impact was less severe than anticipated.
Bruce Schneier, Harvard Kennedy School and Nathan Sanders, Harvard University
It’s been the biggest year for elections in human history: 2024 is a “super-cycle” year in which 3.7 billion eligible voters in 72 countries had the chance to go the polls. These are also the first AI elections, where many feared that deepfakes and artificial intelligence-generated misinformation would overwhelm the democratic processes. As 2024 draws to a close, it’s instructive to take stock of how democracy did.
In a Pew survey of Americans from earlier this fall, nearly eight times as many respondents expected AI to be used for mostly bad purposes in the 2024 election as those who thought it would be used mostly for good. There are real concerns and risks in using AI in electoral politics, but it definitely has not been all bad.
The dreaded “death of truth” has not materialized – at least, not due to AI. And candidates are eagerly adopting AI in many places where it can be constructive, if used responsibly. But because this all happens inside a campaign, and largely in secret, the public often doesn’t see all the details.
Connecting with voters
One of the most impressive and beneficial uses of AI is language translation, and campaigns have started using it widely. Local governments in Japan and California and prominent politicians, including India Prime Minister Narenda Modi and New York City Mayor Eric Adams, used AI to translate meetings and speeches to their diverse constituents.
Even when politicians themselves aren’t speaking through AI, their constituents might be using it to listen to them. Google rolled out free translation services for an additional 110 languages this summer, available to billions of people in real time through their smartphones.
Other candidates used AI’s conversational capabilities to connect with voters. U.S. politicians Asa Hutchinson, Dean Phillips and Francis Suarez deployed chatbots of themselves in their presidential primary campaigns. The fringe candidate Jason Palmer beat Joe Biden in the American Samoan primary, at least partly thanks to using AI-generated emails, texts, audio and video. Pakistan’s former prime minister, Imran Khan, used an AI clone of his voice to deliver speeches from prison.
Perhaps the most effective use of this technology was in Japan, where an obscure and independent Tokyo gubernatorial candidate, Takahiro Anno, used an AI avatar to respond to 8,600 questions from voters and managed to come in fifth among a highly competitive field of 56 candidates. https://www.youtube.com/embed/N9GaiEgWjlE?wmode=transparent&start=0 ‘AI Steve’ was an AI persona who ran for office in the 2024 U.K. election.
Nuts and bolts
AIs have been used in political fundraising as well. Companies like Quiller and Tech for Campaigns market AIs to help draft fundraising emails. Other AI systems help candidates target particular donors with personalized messages. It’s notoriously difficult to measure the impact of these kinds of tools, and political consultants are cagey about what really works, but there’s clearly interest in continuing to use these technologies in campaign fundraising.
Polling has been highly mathematical for decades, and pollsters are constantly incorporating new technologies into their processes. Techniques range from using AI to distill voter sentiment from social networking platforms – something known as “social listening” – to creating synthetic voters that can answer tens of thousands of questions. Whether these AI applications will result in more accurate polls and strategic insights for campaigns remains to be seen, but there is promising research motivated by the ever-increasing challenge of reaching real humans with surveys.
On the political organizing side, AI assistants are being used for such diverse purposes as helping craft political messages and strategy, generating ads, drafting speeches and helping coordinate canvassing and get-out-the-vote efforts. In Argentina in 2023, both major presidential candidates used AI to develop campaign posters, videos and other materials.
In 2024, similar capabilities were almost certainly used in a variety of elections around the world. In the U.S., for example, a Georgia politician used AI to produce blog posts, campaign images and podcasts. Even standard productivity software suites like those from Adobe, Microsoft and Google now integrate AI features that are unavoidable – and perhaps very useful to campaigns. Other AI systems help advise candidates looking to run for higher office.
Fakes and counterfakes
And there was AI-created misinformation and propaganda, even though it was not as catastrophic as feared. Days before a Slovakian election in 2023, fake audio discussing election manipulation went viral. This kind of thing happened many times in 2024, but it’s unclear if any of it had any real effect.
In the U.S. presidential election, there was a lot of press after a robocall of a fake Joe Biden voice told New Hampshire voters not to vote in the Democratic primary, but that didn’t appear to make much of a difference in that vote. Similarly, AI-generated images from hurricane disaster areas didn’t seem to have much effect, and neither did a stream of AI-faked celebrity endorsements or viral deepfake images and videos misrepresenting candidates’ actions and seemingly designed to prey on their political weaknesses. https://www.youtube.com/embed/qs05muNU5dg?wmode=transparent&start=0 Russian intelligence services aimed to use AI to influence U.S. voters, but it’s not clear whether they had much success.
AI also played a role in protecting the information ecosystem. OpenAI used its own AI models to disrupt an Iranian foreign influence operation aimed at sowing division before the U.S. presidential election. While anyone can use AI tools today to generate convincing fake audio, images and text, and that capability is here to stay, tech platforms also use AI to automatically moderate content like hate speech and extremism. This is a positive use case, making content moderation more efficient and sparing humans from having to review the worst offenses, but there’s room for it to become more effective, more transparent and more equitable.
There is potential for AI models to be much more scalable and adaptable to more languages and countries than organizations of human moderators. But the implementations to date on platforms like Meta demonstrate that a lot more work needs to be done to make these systems fair and effective.
One thing that didn’t matter much in 2024 was corporate AI developers’ prohibitions on using their tools for politics. Despite market leader OpenAI’s emphasis on banning political uses and its use of AI to automatically reject a quarter-million requests to generate images of political candidates, the company’s enforcement has been ineffective and actual use is widespread.
The genie is loose
All of these trends – both good and bad – are likely to continue. As AI gets more powerful and capable, it is likely to infiltrate every aspect of politics. This will happen whether the AI’s performance is superhuman or suboptimal, whether it makes mistakes or not, and whether the balance of its use is positive or negative. All it takes is for one party, one campaign, one outside group, or even an individual to see an advantage in automation.
Bruce Schneier, Adjunct Lecturer in Public Policy, Harvard Kennedy School and Nathan Sanders, Affiliate, Berkman Klein Center for Internet & Society, Harvard University
This article is republished from The Conversation under a Creative Commons license. Read the original article.
STM Daily News is a vibrant news blog dedicated to sharing the brighter side of human experiences. Emphasizing positive, uplifting stories, the site focuses on delivering inspiring, informative, and well-researched content. With a commitment to accurate, fair, and responsible journalism, STM Daily News aims to foster a community of readers passionate about positive change and engaged in meaningful conversations. Join the movement and explore stories that celebrate the positive impacts shaping our world.
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How the gladiators inspired evangelicals’ sense of persecution
Cavan W. Concannon, USC Dornsife College of Letters, Arts and Sciences
With the release of Ridley Scott’s “Gladiator II,” audiences will be plunged back into the cinematic excitement of the Roman amphitheater so vividly captured in its predecessor, “Gladiator.”
Scott’s film will undoubtedly capture the thrills of this spectacle. But as someone who studies the Roman world, I think it’s worth remembering that its cultural legacy goes beyond the cinematic pleasures of the big screen.
You might be surprised to learn that there are threads that tie together gladiators, Christian martyrs and the sense of persecution that exists among many U.S. evangelicals today.
Fan clubs and heartthrobs
Gladiatorial fights likely began as part of the funeral rites of wealthy Roman families. Over time, the fights became mass public events, regulated by the state and elites.
They included three sets of events: wild beast fights, the executions of criminals, and gladiatorial fights. The gladiators were the main event, with their forthcoming battles hyped on the walls of Roman cities. These advertisements often mentioned the names of the famous fighters, the number of gladiators fighting, and whether there would be fights to the death. Not all gladiators fought to the death: The gladiator Hilarus, for example, won 12 times but fought in 14 fights.
Gladiators were, by law, required to be slaves.
Their enslavers invested time and money in their training and upkeep. Roman games were put on at the expense of local elites, or even the emperor. Well-trained gladiators meant better shows for the sponsors and bigger profits for their owners. A gladiator who died in his first fight was not good for business. Meanwhile, a successful gladiator – meaning one who had made his enslaver a lot of money – could hope to be freed or be given an opportunity to buy his freedom.
Those who won could also expect to become beloved celebrities, which somewhat offset the dishonor of being enslaved. In Pompeii, multiple inscriptions mention the Thracian gladiator Celadus, calling him a heartthrob. Gladiatorial fan clubs were common. One group was likely responsible for a riot that broke out during a set of games in Pompeii in 59 C.E. There’s even evidence of gladiatorial cosplay. One Roman senator was said to have fought duels with a woman in a leopard costume at Ostia.
Meanwhile, the tombstones of gladiators in Roman-controlled Greece celebrated their prowess using language drawn from ancient athletics, which were sports that were only available to freeborn citizens. These gladiators gave themselves stage names evoking mythological heroes or their courage and bravery.
These stage names were not just for entertainment; they were attempts to immortalize their respectability. By casting themselves as athletes and not enslaved fighters, they presented themselves as participants in a noble, athletic tradition.
Christians embrace ancient athletics
Early Christians used descriptions of sports and athletics because they could be easily understood by Roman society.
Ancient athletic competitions shaped how people thought about beauty, the body, self-control, education and competition. For victorious gladiators, the outcast and the slave could paradoxically embody the ideals of Roman virtue.
In the Christian New Testament, the apostle Paul famously describes himself as a runner and a boxer and even as a gladiator. The writer of the letter to the Hebrews speaks of running a race before a heavenly crowd of witnesses.
By embracing this imagery, early Christians positioned themselves as outsiders who nonetheless championed Roman ideals and culture.
Gladiator as martyr
Some early Christians followed Paul’s example and wrote themselves into the culture of ancient sports, particularly in a genre of Christian writing focused on martyrdom.
It is commonly thought that the earliest Christians were regularly and systematically persecuted by the Roman government. But the widespread persecution of ancient Christians under the Roman Empire is a myth that modern historians have debunked. Local persecutions did happen from time to time: There were a few short periods where the imperial government targeted Christians. However, for the most part, the Romans paid little attention to Christians.
So why were Christians so focused on telling stories of martyrs?
Ancient Christians wrote violent stories about martyrs because they functioned as morality plays that taught virtue and vice.
One example is the account of the “Martyrs of Lyons and Vienne,” written sometime at the end of the second century C.E. In the story, those condemned to death in the arena are described as “noble athletes” and “noble competitors.” The author characterizes Christians – who are dying not as athletes or gladiators, but as common criminals – as those who possess the elite virtues of great athletes. The reversal of expectations gives the story its force.
You can see this in the character of Blandina, an enslaved woman who is described in the account as a noble athlete and as one who has put on Christ, the “mighty and powerful athlete.” The author instructs the audience to see her as a hero, not as a slave or a criminal: through her, “Christ showed that the things that appear worthless, obscure, and despicable among men are considered worthy of great glory with God.”
In another martyr narrative, a woman named Perpetua has a dream in which she transforms into a gladiator before her martyrdom. These early Christian martyr accounts envision games in which enslaved people display noble courage and virtue; those condemned to torture, beatings and violent deaths are unfazed. Instead, they’re self-possessed athletes who strive for imperishable crowns.
Forever persecuted
The draw of stories in which Christians are “thrown to the lions” has remained powerful. Most ancient martyr accounts were written after Christianity became legal in the Roman Empire. But Christians continued to write stories about martyrs even after they became the majority of the population.
In the U.S. today, evangelical, charismatic and conservative Christians continue to tap into the martyrdom mythology. Even as they’ve become a powerful force in national politics, many influential wings of conservative U.S. Christians have come to characterize themselves as a persecuted minority. And they keep writing martyr stories.
High school football coach Joe Kennedy became an evangelical hero for fighting for the right to pray on the field at public high school football games. Kennedy had been fired for leading postgame prayers on the field, in violation of school policy. His supporters viewed him as a champion of religious freedom who was being unfairly persecuted for his beliefs. Kennedy ultimately fought all the way to the U.S. Supreme Court, which ruled in his favor.
Other conservative Christians have also returned to the arena. This time, they’re the gladiatorial fighters and not the murdered martyrs.
The popular internet meme of Marine Todd taps into this particular fantasy: The fictional Marine gets so fed up with his atheist university professor that he punches him in front of the class. Meanwhile, the gallows and crosses that accompanied the Jan. 6, 2021, attack on the U.S. Capitol juxtaposed fantasies of violence with Christian fears of persecution. While less ominous, the recent film “The Carpenter” puts Jesus ringside, telling the story of how Jesus takes on an apprentice and teaches him how to fight, MMA-style, in ancient Nazareth.
In depictions like these, Christians are no longer dying in the arena. It’s where they fight back.
Cavan W. Concannon, Professor of Religion and Classics, USC Dornsife College of Letters, Arts and Sciences
This article is republished from The Conversation under a Creative Commons license. Read the original article.
The Bridge is a section of the STM Daily News Blog meant for diversity, offering real news stories about bona fide community efforts to perpetuate a greater good. The purpose of The Bridge is to connect the divides that separate us, fostering understanding and empathy among different groups. By highlighting positive initiatives and inspirational actions, The Bridge aims to create a sense of unity and shared purpose. This section brings to light stories of individuals and organizations working tirelessly to promote inclusivity, equality, and mutual respect. Through these narratives, readers are encouraged to appreciate the richness of diverse perspectives and to participate actively in building stronger, more cohesive communities.
https://stmdailynews.com/the-bridge
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