Description
The sensor which is used to measure the distance, velocity and movements of objects above wide distances is known as a radar sensor and also measures the relative speed of the noticed object. This sensor uses wireless detecting technology like FMCW (Frequency Modulated Continuous Wave) to detect the motion by figuring out the object’s shape, position, motion trajectory & motion characteristics
As compared to other types of sensors, these sensors are not affected by darkness & light. These sensors can detect longer distances & it is secure for people & animals. Here the carrier frequency is modulated constantly in a small range of bandwidth. Once the signal from an object is reflected back, then it is feasible to determine the distance & also the object speed by comparing frequency.
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