Radar

Radar – The word “radar” comes from the Latin radio – to emit rays and locatio – location.
One of the ways to study space objects. Using radar, it is possible to compare the parameters of the radio waves emitted by the antenna and reflected from the object. In the case when radio emission is emitted in the form of pulses, it becomes possible to measure the distance to the object using the delay time of their return. As a result of attenuation of the intensity of reflected radiation and the possibility of its polarization, it is possible to obtain information about the physical properties of the surfaces of space objects. As a result of the use of radar, the distances between the Earth and various bodies of the Solar System are being clarified, meteoroids and the structure of the Earth’s ionosphere are being studied, and planetary surface properties are being studied using spacecraft. Let’s say that the map of the surface of Venus was created only through the use of this method. Previously, radar was used to determine the position of aircraft for air defense purposes.