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Radar Is A Robot's Eye Laser Pointer to Determine Their Spatial Position

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For car owners, green laser pointer radar ranging is no stranger. When driving at high speed, radar ranging allows the car to automatically maintain the distance between the car and the car. The car will move forward automatically, and the owner does not need to step on the accelerator. Of course, the direction is still controlled by the owner. Moreover, when using radar ranging, driving can also detect the vehicle ahead and maintain the distance by itself; when the distance is too close, it will automatically reduce the speed. It seems that although radar ranging does not free the driver's hands. But at least one foot (the foot that stepped on the accelerator) was freed. It can be regarded as the forerunner of unmanned driving. However, radar ranging is not only used in cars.

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Radar is the eyes and ears of the machine. Radar is the abbreviation of "radio detection and positioning". Use radio methods to find targets and determine their spatial position, distance from the target, area, speed, etc. State parameters are mainly composed of antenna, transmitter, receiver (including a signal processor), and display. If it is a bit more popular, then the function of radar is similar to that of eyes or ears. Of course, it is no longer a masterpiece of nature. The principle of measuring distance is as follows: measuring the time difference between the transmitted pulse and the echo pulse. Because electromagnetic waves travel at the speed of light. Based on this, it can be converted into the precise distance between the radar and the target.

2020-08-05 06:53:56

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