How to do a good job of "identification of friend and foe" in UAV counter system?

How to do a anti drone system? Is the existing solution sufficient? What are the problems? Compared with foreign countries, what are the similarities and differences?

In this issue, Yuchen.com has held a special dialogue with Chen Changzhi, the chief scientist of Chengdu Leitong Technology Co., Ltd. (hereinafter referred to as Leitong Technology) and Chairman Du Chengbing, to see the development status of this field.

Orderly flight needs to build a "low-altitude three-dimensional staircase traffic corridor"

Yuchen.com: Leitong Technology mainly deals with counter-related products. What kind of situation is the company?

Chen Changzhi: Although Leitong Technology was not established for a long time (established in 2017), our professional career has been very long and professional. It was originally a person who was on the military front. Although we are a private enterprise, the professional team of experts has more than 10 people, and the research and development team has more than 100 people, mainly relying on the Institute of Photoelectric Radar of the University of Electronic Science and Technology.

From the perspective of the development of drones, there are already a lot of drones. They are engaged in agricultural spraying, logistics, emergency rescue, aviation aerial photography, and information acquisition. In these respects, drones are now available. Implement the relevant functions in the air, but who will manage it? Suppose we are flying in a certain area now, what should we do in the air? It is impossible for each person to walk. We need to establish a low-altitude aerial staircase-like traffic corridor. only when the drone can fly scientifically and orderly can the industry develop. If you compare the air traffic corridor with the ground traffic corridor, the ground is very clear, there are electronic eyes, there are traffic police, how to draw air routes when flying in the air, it is necessary to according to low-altitude conditions, such as 100 meters to 200 meters, 200 meters At 300 meters, what kind of functional aircraft should fly. You are engaged in logistics, depending on the load of logistics, whether it is a meal or two, what are the functions, how to fly? Who is going to separate, this is the problem. The UAV industry chain can be said to be a trillion-dollar industrial chain. Ground transportation cannot be solved. UAVs are the most effective way in the future. They are flexible and maneuverable, but if the management is not good, they will be chaotic, and there will be accidents. This is the country's biggest concern. UAVs are also vehicles. Since they are vehicles, they must abide by traffic rules. Who is the air traffic regulations? You can't ask a few policemen to stand on the tree or make a hydrogen balloon.

Yuchen.com: What assistance can you provide for this “traffic rule”?

Chen Changzhi: We have “Clair Eyes” and “Shunfeng Ear”, which is low-altitude radar. Leitong Technology is the monitoring system for low-altitude radar. Not only can we achieve air monitoring, but we can also manage it. The so-called management is the suppression system. If you want to go to the civil aviation airport, you will find that the radar is equivalent to the electronic eye and the traffic police. If you shouldn't fly high, but fly high, you shouldn't be biased. We can use the pressing system to suppress, forcing you to the scope of the specification, such as using jammers. This is a way. You can also install a jammer next to the airport. If you want to fly, you can't fly in, that is, form an electronic fence. Our jammer can achieve several functions. First, the drone can be hovered in the air to cut off the data link of the remote control aircraft. The second can also release information such as GPS, where you originally came from, the original way back. Another way is to use the laser directly to attack you.

These three modes are actually the first two in our domestic application. The latter is actually a contradiction between the enemy and the enemy. For example, at the military border, it is not only necessary to prevent the ingress and the destruction. The products we researched by Leitong Technology are mainly to protect the various functional drones that are legal. Who is it? Mainly low-altitude radar, like the traffic police and electronic eyes on the ground, the evacuation of the red light green, and secondly, for illegally entering unregistered drones, we are equivalent to a sniper, can carry out interference and precision Strike. This is what our company does.

Yuchen.com: What is the difference with friends?

Chen Changzhi: The difference between us and our friends is that most of our friends are also engaged in drones. Some of them are engaged in radar, but the radar they do is different from us. We are a complex. Why do you want to be a complex? Because their radar sees a relatively large drone. When it is too small, it may not be seen. It depends on optical thermomagnetic imaging. What our company is actually doing now is radar and optoelectronic integration. The so-called photoelectric integrated radar is an electronic eye with electromagnetic waves. It has obtained the role of the traffic police electronic eye and the referee. It knows that you violate the rules and violates the rules. At the same time, we solve the small planes in the complex environment, such as the small and medium-sized treasures. can be seen.

This is the biggest feature of our company: one is that our radar can detect the flying unmanned aerial vehicles, the small ultra-small we use the photoelectric effect together, the radar can find the target, identify the target, and decide the target. Flight path, track, latitude and longitude, speed, altitude, but what does the aircraft grow like? The radar is invisible, so we rely on our photovoltaic system to identify its properties, to see if it is a drone that is sprayed by agriculture, or to destroy it. In short, we can see what is hanging on the plane. Therefore, our system of Leitong Technology is to protect the drones. For those drones that are illegally entered, our system is a hunter. You can either shield it or knock it down.



The development of the drone industry needs to be “visible and manageable”

Yuchen.com: How far can your system be identified?

Du Chengbing: From the radar we are doing now, if you need two kilometers, we can do two kilometers. If we want five kilometers, we can do five kilometers. If you want ten kilometers, you can also, mainly according to the needs of users. Do, but the cost of ten kilometers is definitely more expensive. Our products are basically concentrated in two files of two kilometers, three kilometers, five kilometers, eight kilometers and ten kilometers.

Governing the drone black fly, we have the means to have a complete system, whether it is identification, combat, interference. These include radar, interference, and thermomagnetic imaging. Thermomagnetic imaging technology is the only one in the world. It has the ability to wear clouds and fog than ordinary infrared imaging. Infrared thermal imaging will absorb heat once it is fogged, but hot and magnetic signals. (The signal of electromagnetic waves) has a strong ability to pass through the haze. We are a special algorithm that superimposes two kinds of signals and then form an image. This military-to-civilian technology is unique in the world. Our low-altitude interference radar system, our embedded algorithm, is currently unique in China. After embedding, our anti-interference ability is stronger and the locking target is more precise. Our company has two major categories of highlights, one has its own independent intellectual property rights, and the other is its own professional expert research and development team. For the current drones, legally identifiable, can provide escort. If it is not legal, it can be caught like a police officer.

The development of the drone industry is nothing more than nine words: to be "visible", but also to "control", and finally you "fly". If I can manage you, see you, everyone can fly, and the industry can develop. Without this system, there will be more drones, and finally the industry will not develop.

Yuchen.com: At present, there are quite a few companies that do counter-production in China. What problems do you think exist?

Du Chengbing: At present, the general domestic counter-system cannot identify the aircraft as legal and illegal, and there is no identification system. We have a system with an identification system. The aircraft is not registered. It is like a car running on a highway. It is a license issued by a regular manufacturer. It is still not illegally manufactured. We can at least judge. In the future, the country will form an industry standard. We have laid the foundation in this place. After all the drones fly in the future, there will be an airborne set-top box inside, and we are also designing. Just when the plane flies up, I know your identity. When is the registered manufacturer, who is the manufacturer. I embedded these information codes inside, and the radar has the function of identification. As long as I have a network, I know who the aircraft is and how much it carries.

Our anti-UAV system has the ability to recognize the clairvoyance. It can be said that the identification method of the enemy and the enemy is used in the civilian field. Many manufacturers use fools. Whether you are a good person or a bad person, it interferes, which is not conducive to the development of the drone industry. We have a radar identification system. The radar is equivalent to an eye. If it is legally registered, it will be unblocked, no license, or no inspection fee. Then you come over. Our system has the ability to judge recognition and perception, and can establish a traffic corridor for the reasonable and orderly transportation of our drones.

Now I have done some interference systems. Strictly speaking, it is a bit toy. No matter who you are, finding the target will interfere with you. Can not be classified and identified, professionalism is not enough.

Yuchen.com: Does this market not mature enough?

Du Chengbing: The interference system should be purposeful, with identification and judgment to interfere. We now have such a function. For example, drones are not difficult to assemble, but they must have some functions, such as detection type, inspection type, your cargo capacity, endurance, and flight height. These require technology. The drone has to fly, there is no high-tech content. But you have to make the problem accurate, the function is different, for example, the drone reconnaissance the rice inside the rice has no worms, for example, to accurately strike a target, there are more than 50 tanks below, which is me, which is not me I definitely want an identification system for the enemy and me. If I don’t have a recognition system, what should I do? Therefore, the future development of the drone, I think it is to the functional distinction, more precise positioning, this should be the direction of the development of drones. To fly, you have to manage it. You can see that this industry can develop very well. The nine words "Fulfilling, Control, and Visibility" are to be realized. What depends on it? By low-altitude radar with enemy and my identification and our interference and suppression system for drones.

If the system is not built, the drone will fly in the sky, we can't help but see, the industry is just in a groping phase. Our technology is very mature, but we must establish a traffic corridor when we mature, so it is strictly necessary to have a pilot. The National Air Traffic Control Commission conducted a pilot project in Sichuan and conducted a pilot project in Hainan, which is slowly being released. Our system is equivalent to building the expressway first, the road is not built, and it can't run. Nowadays, many manufacturers of drones make a lot of money. Our system will promote, promote and protect the drone industry. Even if the drone industry has not developed, we can also use it in public security armed police, including farms. Some people fly black drones to send money, or illegal knives can be found in the surrounding installation. The direction we developed at that time was mainly the public security armed police and the monitoring, control and identification of drones.



If the "bee colony" strikes, it can emit electromagnetic waves to solve

Yuchen.com: Because Leitong Technology was not established for a long time, what are some cases in application?

Du Chengbing: We are useful at the airport to prevent drones from taking planes. The second is to install radar on the modified car. For example, when the leader goes to inspect, you can use our products to escort.

Yuchen.com: What is the market positioning of Leitong Technology?

Du Chengbing: We are not only facing the domestic market, but also facing foreign countries. For example, many situations in the Middle East are not good. We can buy our equipment, including the assassination of the Venezuelan president, and the kind of drones that are fixed with the team. very horrible.

Of course, China is not so severe. There have been several cases of civil aviation. For example, there are UAVs in Shuangliu Airport, and many flights have been forced to land. Slowly, everyone has realized some problems. We are in contact with Middle Eastern customers, they are the kind of fixed-wings, and they are equipped with special materials, you have not found it may come over. The rotor is generally slower, but the fixed wing is very fast. We are global, so we have to understand both domestic and foreign.

Yuchen.com: What is your solution for drones with special materials that are not easy to find?

Du Chengbing: In fact, it is very headache for anyone. The domestic is called low and slow, and the foreign country is called low and fast. We have a set of our algorithms and optimizations for foreign features. The second is our launch system. The power must be increased and many parameters adjusted so that we can find out. Therefore, there are still differences between domestic and foreign countries.

Yuchen.com: What is the level of domestic counter-measures compared with foreign countries?

Du Chengbing: Simple, such as the public security system, the world may not be too much, nothing more than power suppression, generally know which frequency band. Take the frequency generated by these frequency bands, cut off the communication link of your communication link, let your drone return or fly, which is simple and cheap. The more complicated is to use laser and guide by radar. The radar guides where in the past, and the laser burns it at a fixed point. But there is a flaw in this, the first laser device is relatively bulky. Second, the range of action is limited. Third, the cost is too expensive.

Moreover, when a drone comes, you can burn it slowly, the bee colony, if you come to ten, you may have already finished this, but this thing is not too ideal. An ideal way is to emit electromagnetic waves on the bee colony. This electromagnetic wave energy is very large. In the direction of the drone, high energy can burn the circuit chip inside. If the circuit chip burns, the airplane will fall. Come down. This method was announced last year by Raytheon, and more than 30 of them were burned against the drone.

Yuchen.com: How much is your product set?

Du Chengbing: There are dozens of millions. Many radars need to be customized. Some people want one kilometer, some have two kilometers, five kilometers, ten kilometers, and normal three kilometers. There are one hundred models for enterprise R&D.

Yuchen.com: In addition to drones, what other applications?

Du Chengbing: Radar applications are too broad. For example, our small radar, public security armed police can be used, such as a number of border oil depots, can also be used as security.