Expert: China's anti-UAV technology is backward and the West cannot fight all day
Since the extremist organization "Islamic State" (IS) used small drones to carry explosives to attack US troops stationed in Iraq, the threat of low-altitude small drones has been mentioned to an unprecedented height. How to deal with the increasingly serious drone threat? On the 12th Qian Xuesen Forum held in Nantong on the 12th, Professor Tao Ran, Director of the Qian Xuesen Innovation Committee of China Aerospace 12 Institute, introduced China's latest progress in this regard. With the explosive development of consumer-grade drones, the threats it poses are increasing. According to statistics, from August 2015 to September 2016, there were 726 drone incidents in the United States alone. In China, drones that have fallen and injured people, forced flights and trains have also occurred frequently. In addition, criminals even plan to use drones to carry illegal activities such as drugs. Tao Ran said that the activities of such drones are difficult to control. On the one hand, because the relevant legislation is still not perfect, the management of such new things is far from being in place; on the other hand, such "low-altitude, slow and small targets" (Low slow and small target) "It is also very difficult to detect. Due to the influence of ground radar clutter, it is difficult for conventional radar to identify such small targets. He said that from a technical point of view, it now relies on five technical means to detect such low and slow targets, including microwave radar, optoelectronic equipment, acoustic detection, laser radar and data link detection. These methods have their own advantages and disadvantages. For example, microwave radar detection of low-altitude UAV echo signals is susceptible to clutter interference. It is difficult for Lidar to identify targets at a long distance. Therefore, these detection methods are often used in combination to compensate for short plates. Once the target is discovered, flexible mesh capture, laser interception, radio frequency interference, microwave damage, and data link tubes can be utilized. For example, the Falcon Shield UAV system developed by SelexES of Italy uses cameras, radars and advanced electronic equipment to monitor signals received and transmitted by drones, thereby tracking and determining them. Types of. Once the target is determined to be a threat, the Falcon Shield will use secret technology to control the drone and even crash it. Foreign mature technologies are mainly in the hands of European and American companies, and many defense companies such as China's weapons industry group, electronic technology group, national defense science and technology university and aerospace science and technology group also carry out related research. Tao Ran admits that foreign countries have low-speed and small-target prevention and control systems that can achieve regional coverage. Domestically, they are relatively backward in this respect, and they have not yet possessed the ability of coordinated prevention and control in all-weather and complex environments. However, he revealed in the forum that the research institutes such as the Aerospace 12th Institute, the National Defense Science and Technology University, and Beihang University are working together to create a UAV interception system that can be easily deployed. It uses a variety of technical means to jointly detect and is equipped with composite interception measures: The interception of the net bomb at the close range will be opened into a tens of square meters of large-capacity capture drones; the on-board laser weapon can perform hard damage interception on targets within two kilometers; according to site needs, It can also crack the link signal of the drone and trick it into a safe area for disposal. Aspheric Lens,Standard Aspheric Lens,Positive Meniscus Lenses,High Precision Aspheric Lens Danyang Horse Optical Co., Ltd , https://www.dyhorseoptical.com