드론의 실시간 영상을 간섭으로부터 보호하는 방법? 다음은 비디오 보호를 위해 FPV 드론을 중지하는 방법에 대한 관련 기사입니다., COFDM 디지털 무선 비디오 송신기 및 수신기가 권장됩니다.
https의 뉴스 번역://focus.ua/digital/673099-shtory-protiv-fpv-dronov-kak-rabotaet-novaya-reb-rossii.
눈이 멀고 넘어진다: 어떻게 “REB 커튼” 우크라이나 가미카제 드론을 중지하고 보호 기능이 있습니까? (동영상)
우크라이나 부대의 FPV 드론의 비디오 채널 억제는 전장에서 빈번한 현상이 되었습니다.. 전문가들 “반대 가능”.
러시아군은 이제 공격용 FPV 드론의 영상 전송을 방해하는 전자전 장비를 매우 효과적으로 사용하고 있습니다.. 집중하다 어떻게 작동하는지 알아냈어, 우크라이나 국방군에 어떤 피해를 입히나요?, 그리고 자신을 보호하는 방법.
그만큼 “눈” 의 드론이 폐쇄되었습니다: 새로운 위협이 눈앞에 다가왔다
군사 컨설턴트 Serhiy Beskrestnov, 가명으로 “플래시”, 9월 말 페이스북에 많은 우크라이나 FPV 드론 조종사가 러시아의 방해를 받고 있다고 썼습니다.’ EW 장치, 비디오 신호에 영향을 미치는. 사람들은 그들에게 별명을 붙였다. “커튼” – 화면에 나타나는 장애물의 모양을 따라. 결과적으로, 운영자는 자신이 어디로 비행하는지 볼 수 없기 때문에 항공기를 제어할 수 없습니다..
러시아 전투기, 특정 주파수에서 알려지지 않은 FPV 드론의 영상을 먼저 가로채다, 적대적이라고 판단 – 유닛 이름으로, which is written in the OSD menu, or by the increase in signal strength, after which they estimate the battery charge and the time for which the jamming should be turned on.
“This is especially a problem for repeaters. They hang high, see far, and even 20-30 km away, their video receiver can be an obstacle. There would be power. So far, many are getting away with changing and selecting frequencies, but this solution is banal, painful, and temporary,” – writes “플래시”.
어떻게 “커튼” 일하다: 장점과 단점
An engineer of the “Sky of Victory” 프로젝트, which produces “Grim” FPV drones for the Ukrainian army, expressed his opinion about the obstacles to Focus anonymously. According to him, “Curtain”-type devices affect only the video channel, throwing off the synchronization between the video transmitter on the drone and the pilot’s video receiver. As a result of the action of the system, after losing the image from the drone, the pilot cannot navigate in space and continue the flight, in such conditions, the copter simply falls.
“It is designed specifically to combat FPV drones,” the specialist noted.
Serhii Gerasimyuk, the founder of Antidron Ukraine, a company that produces EW devices, explained to Focus in more detail how it works. It is impossible to suppress the analog video signal affecting the FPV drone because it has a Video Transmitter (VTX), 즉, a transmitter, but there is no receiver in the same range, so it does not “listen” to anything.
Suppressing video in the case of FPV drones is only possible by creating radio interference to the pilot’s receiver. It is impossible to do this with a dome because the operators are never 50-200 meters away from the working EW devices.
“On the market, there are a lot of offers of EW-domes with video suppression. But this speaks of only one thing – about the expertise of the manufacturer, or rather, its complete absence,” the developer noted.
To suppress the video of an FPV drone, a powerful complex with an antenna directed toward the enemy “nest” of pilots is required. To do this, you need to know the azimuth, 즉, the direction where to point it. It can be installed only with the help of technical means of radio electronic intelligence (ER), both specialized and cheap “video receivers” with auto-search for the desired range, which can be found on Aliexpress.
The operator of such equipment intercepts the “picture” and must visually determine the terrain, as well as the approximate location of enemy pilots. Then the antenna is directed and interference is created at the same frequencies as the video signal.
“This is not a dome where you “turned on and forgot”. An effective countermeasure of this type is already a certain complex, algorithm of actions. And only timely, consecutive actions allow you to achieve a positive result. That is, it is at least a two-person calculation with everything necessary for timely interception video, determination of the direction, the presence of a directed “jammer” on that range, operational guidance, and setting obstacles. And all this must be done before the FPV arrives at the target it was flying to,” stressed Serhiy Gerasimyuk.
Even with everything in place for success, EW operators may lack the time or reaction to determine direction and direct their devices. But despite all the difficulties, the algorithm has a certain percentage of efficiency. In addition to the usual video bands (5.8/1.2 GHz), both sides also use non-standard bands (1.5/3.3/4.9 GHz), for which there are no means of intercepting the video channel, or their choice is quite limited due to their less “popularity”. Everything depends on the availability of all the necessary means, and even in this case, fighters may not know where to direct the available means of countermeasures.
뚫을 수 있을까? “커튼”
The engineer of “Sky of Victory” says that it is quite possible to counteract the suppression systems of video signals of FPV drones. Such solutions already exist, but the engineer did not go into details, so as not to simplify the life of the enemy and not to give hints on how to bypass the Ukrainian analogs of “커튼”.
In the network, experts are discussing replacing the analog video channel with a digital one, and the above-mentioned Sergey Beskrestnov also supports this option. The representative of “Sky of Victory” believes that digital systems will help solve only some highly specialized tasks because they have a number of pros and cons.
“Unfortunately, digital wireless COFDM video transmission system takes a long time to recover after signal loss and does not allow quick response to the situation in flight,” 그는 말했다.
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