There are many types of radar, and the classification method is also very complicated. Generally military radar. It can usually be classified according to the purpose of the radar, such as early warning radar, search warning radar, guidance command radar, gunsight radar, height measurement radar, battlefield surveillance radar, airborne radar, radio height measurement radar, radar fuze, weather radar, navigation control radar , Navigation radar, collision avoidance and enemy identification radar, etc.

1. According to the radar signal type, there are pulse radar, continuous wave radar, pulse compression radar and frequency agile radar.

2. According to the angle tracking method, there are monopulse radar, cone scanning radar and concealed cone scanning radar.

3. According to the classification of target measurement parameters, there are altimetry radar, two-coordinate radar, three-coordinate radar, adversarial radar, multi-station radar, etc.

4. According to the radar technology and signal processing methods, there are coherent accumulation and non-coherent accumulation, moving target display, moving target detection, pulse Doppler radar, synthetic aperture radar, and scanning while tracking radar.

5. According to the antenna scanning method, it is divided into mechanical scanning radar and phased array radar.

6. According to the radar frequency band, it can be divided into over-the-horizon radar, microwave radar, millimeter wave radar and lidar.

Among them, phased array radar is also called phase array radar, which is a radar that changes the beam direction by changing the phase of the radar wave. Because the beam is controlled electronically instead of the traditional mechanical rotation of the antenna surface, it is also called electronic scanning. Radar phased array technology has been around since the late 1930s. In 1937, the United States first started this research work. However, it was not until the mid-1950s that two practical shipborne phased array radars were developed. In the 1980s, phased array radar has been further applied due to its many unique advantages. Multi-functional phased array radar is mostly used in the new generation of medium and long-range air defense missile weapon systems that are equipped and under development. It has become an important symbol of the third generation of medium and long-range air defense missile weapon systems. As a result, the combat performance of the air defense missile weapon system has been greatly improved. In the 21st century, with the continuous development of technology and the characteristics of modern warfare weapons, the manufacturing and research of phased array radar will be further improved