Classification of meteorological radar

Any radar without Doppler performance is called incoherent radar or conventional weather radar, and radar with Doppler performance is called coherent radar or Doppler radar. The main weather radars are: 1. Cloud radar is used to detect the height and thickness of clouds and the physical characteristics of clouds when there is no precipitation. Its common wavelength is 1, 25 cm or 0.86 cm. 2. Weather radar. It is a radar used to detect the occurrence, development and movement of precipitation, and to warn and track the precipitation weather system. 3. Circularly polarized radar. Generally, weather radar emits horizontally polarized waves or vertically polarized waves, while circularly polarized radar emits circularly polarized waves. 4. FM CW radar. It is a radar for detecting the boundary layer atmosphere. It has extremely high range resolution and sensitivity. 5. Meteorological Doppler radar. A radar that uses Doppler effect to measure the radial velocity of cloud and precipitation particles relative to the radar. 6. VHF and UHF Doppler radar. A radar for detecting horizontal wind profile, vertical airflow profile, atmospheric turbulence parameters, atmospheric stable stratification and atmospheric fluctuation in a clear atmosphere with a height of 1 ~ 100 km by using the inhomogeneous structure of refractive index in troposphere and stratosphere and the scattering of free electrons in the middle atmosphere.