Radar technology has been widely used for military purposes and in other fields such as intelligent automobiles. radar is used as a representative device to measure the distance of a target owing to its robustness to climatic and environmental changes compared to other sensors. Thus, the main role of the radar is to act as a digital signal processing device that extracts the target object from the erroneous object according to the surrounding environment. Therefore, which determines the main performance of the FMCW radar.