The radar antenna is like the mouth of a bat.
Radar sends out radio waves like a bat's ultrasonic waves, radar screen is like a bat's ears. Electromagnetic waves like sound waves, encounter obstacles to reflect, radar is the use of electromagnetic waves of this characteristic work. The shorter the wavelength of the electromagnetic wave, the better the propagation of the linearity, the stronger the reflection performance.
Therefore, radar uses radio waves in the microwave band. Radar has a special wireless that can be rotated. It can transmit discontinuous radio waves in a certain direction. The time between each emission is about one millionth of a second, and the time between two emissions is about one millionth of a second.
Extended information:
The principle of radar is described as follows:
The emitted radio waves encountering an obstacle can be reflected back to be received wirelessly within this time interval. According to the formula 2S=ct to determine the distance S of the obstacle, and then according to the direction and elevation angle of the transmitted radio waves, you can determine the location of the obstacle.
Designed and developed based on the principle that bats fly at high speeds in the dark without colliding with any obstacles. The advantages of the radar are that it can detect targets at long distances during the day and night, and it is not blocked by fog, clouds and rain, and it can be characterized by all-weather, all-day work, and has a certain degree of penetration ability.
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