5 juillet 2021 | International, Naval

Turkey to make its own maritime missile-launching system after sanctions interrupt Lockheed plans

Turkish defense company Roketsan is to develop a vertical launching system for the country’s first locally made frigate, after American sanctions disrupted original procurement plans, said naval platforms acquisition official Alper Kose.


Sur le même sujet

  • DARPA, BAE to develop AI for interpreting radio-frequency signals

    28 novembre 2018 | International, C4ISR

    DARPA, BAE to develop AI for interpreting radio-frequency signals

    By Stephen Carlson Nov. 27 (UPI) -- BAE Systems has been selected by the U.S. Defense Advanced Research Projects Agency to develop machine learning algorithms to decipher radio frequency signals for protection against enemy hacking and jamming attempts. DARPA is awarding BAE $9.2 million for machine learning algorithm development, the company announced on Tuesday, which will build off of adaptive technology that has already been applied to face- and voice-recognition systems and drones operating autonomously for RF signal processing. "The inability to uniquely identify signals in an environment creates operational risk due to the lack of situational awareness, inability to target threats, and vulnerability of communications to malicious attack," Dr. John Hogan, product line director of BAE Systems Sensor Processing and Exploitation division, said in a press release. "Our goal for the RFMLS program is to create algorithms that will enable a whole new level of understanding of the RF spectrum so users can identify and react to any signals that could be putting them in harm's way," Hogan said. Under the Phase 1 contract, BAE will develop the RFMLS as part of its artificial intelligence efforts utilizing technology from DARPA's Communications Under Extreme RF Spectrum Conditions and Adaptive Radar Countermeasures programs. BAE Systems is already working on DARPA's machine learning and artificial intelligence research in RF called the Spectrum Collaboration Challenge. SCC is meant to help alleviate scarcities in available RF spectrum, which would dovetail with work being performed on RFMLS by identifying spectrum that could evade enemy jamming. https://www.upi.com/Defense-News/2018/11/27/DARPA-BAE-to-develop-AI-for-interpreting-radio-frequency-signals/2371543335188/

  • Saab’s new fighter radar in the air

    28 avril 2020 | International, Aérospatial, C4ISR

    Saab’s new fighter radar in the air

    Saab has successfully completed the first air trials with its new fighter X-band Active Electronically Scanned Array (AESA) radar, which will be offered as a new addition to Saab's PS-05/A radar family. Saab continues to develop core AESA technology and has now successfully completed the first air trials with the new X-band AESA radar. The trials were flown successfully, collecting data while detecting and tracking objects. The radar is designed for fighter aircraft and can be adapted to a variety of platforms. As Saab previously announced, a version of the new AESA antenna has been sold to a U.S. Government customer. “This is an important step in the development of our new fighter AESA radar. We see great possibilities for the radar, and its modular, adaptable and scalable design means it can also be used for a range of other applications,” said Anders Carp, SVP and head of Saab's business area surveillance. The host aircraft during the air trial was a Gripen D aircraft, which is currently offered with Saab's latest Mk4 radar. The new version of the radar can be offered to Gripen C/D operators, as an upgrade. The new AESA radar features GaN, a material that gives lower power consumption and improved heat resistance. This enables wider bandwidth and greater reliability, availability and efficiency. The new fighter X-band AESA radar will, for example, have better performance against small targets, enhanced Electronic Counter-Countermeasures (ECCM) capability as well as improved ability to support more advanced weaponry. https://www.skiesmag.com/press-releases/saabs-new-fighter-radar-in-the-air

  • New Spy Drone Flies Non-Stop for a Month

    14 août 2018 | International, Aérospatial

    New Spy Drone Flies Non-Stop for a Month

    Airbus's Zephyr solar-powered drone flew for 25 days straight during a test-flight over Yuma, Arizona beginning on July 11, 2018. The flight represented a record for aircraft endurance, breaking the previous 14-day record also set by a Zephyr back in 2015. The long flight has big implications for military surveillance. Drones like Zephyr could loiter over a low-intensity battlefield far longer than current drones can do. The latest high-endurance Reaper drone maxes out at 40 hours in the air. The propeller-driven Zephyr belongs to a class of aircraft known as “high-altitude pseudo-satellites,” or HAPs. Flying as high as 70,000 feet for weeks or even months at a time, HAPs perform many of the same missions that low-orbiting satellites do. “The main HAP applications are in telecommunications and remote sensing, both civilian and military,” Flavio Araripe d'Oliveira, Francisco Cristovão Lourenço de Melo and Tessaleno Campos Devezas wrote in a 2016 paper. Compared to comms satellites, HAPs have the advantages of lower latency and the ability to land for maintenance or reconfiguration, d'Oliveira, de Melo and Devezas explained. For surveillance missions, HAPs unlike satellites can linger over a particular area and could produce images with better resolution, since they fly lower than satellites do. HAPs could be more vulnerable to enemy defenses, however. Where satellites orbit many hundreds of miles over Earth, beyond the reach of most conventional weaponry, Zephyr — so far the only HAP undergoing realistic testing — attained a maximum altitude of 70,000 feet, well under the ceiling for modern air-defense missile systems such as the Russian S-300. Also, the drone is slow, with a cruising speed of just 20 miles per hour. Zephyr and similar pseudo-satellite drones could be best-suited for operations over lightly-defended territory. In 2016, the U.K. ministry of defense bought three Zephyrs for around $6 million apiece in order to evaluate them for potential use by the military and other government agencies. “Zephyr is a cutting edge, record-breaking piece of kit that will be capable of gathering constant, reliable information over vast geographical areas at a much greater level of detail than ever before,” then-defense secretary Michael Fallon said in a statement. Airbus is still refining Zephyr, in particular its power-consumption. During daytime, the lightly-built solar-powered drone — which features an 82-foot wingspan and yet weighs just 165 pounds — can fly as high as 70,000 feet while also charging its batteries. After the sun goes down, Zephyr runs on batteries ... and slowly loses altitude. During the record-setting Yuma flight, the drone dipped as low as 50,000 feet at night. The challenge for Airbus is to balance weight and power-consumption to produce the optimal flight profile for a particular task. “You have to find the right equation between flying altitude plus battery life, maintaining this or that power,” said Alain Dupiech, an Airbus spokesperson. It's unclear just how long Zephyr could stay aloft under the right conditions. The drone's lithium-ion battery eventually dies, forcing it to land for maintenance. But battery technology is advancing rapidly, driven in part by consumer demand for electric cars, d'Oliveira, de Melo and Devezas wrote. In the short term, a maximum endurance of several months is not inconceivable. But longer flights might not be particularly useful for surveillance and comms missions, Dupiech said. “At this stage, most of those missions are not calling for a year and half up there.” Airbus has scheduled Zephyr's next test flight for October in western Australia. http://warisboring.com/new-spy-drone-flies-non-stop-for-a-month/

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