For the real-time detection technology of UAV of Shenzhen Texin Electronics Co., Ltd., there are currently two technical routes: one is active radar detection technology; the other is passive detection technology of opportunity spectrum analysis.
Detection Technology Based on Radar System
The principle of radar is a technology that has matured since World War II. In recent years, the development of radar technology has advanced by leaps and bounds. With the rapid development of high-speed computer technology, various new radars have emerged one after another, such as phased array radar, pulse Doppler radar, lidar, SAR radar and so on. For UAV radar detection, the main problem is to solve the problems of building reflection and electromagnetic interference in urban environment.
The main possible scenarios of “low, slow and small” UAVs are urban environments, where there are many high-rise buildings. Various reflections of radar signals will affect the real target signal. Therefore, whether different algorithms can be used to eliminate these interferences will directly Affects the actual effect of detection radar. Therefore, it is not necessarily effective to use long-range military radars for sea-to-air use directly for low-slow and small detection, mainly because of environmental issues. However, radar detection must be a classic and effective method for low-slow and small.
The main theoretical basis of radar detection technology is the Doppler frequency shift principle. Move, reverse the movement speed and direction, and form a track to be displayed on the screen.
The above is the introduction of Texin Electronics to the UAV detection and countermeasure system, I hope it will be helpful to everyone.
Reviewing Editor: Fu Ganjiang