The main purpose of radar is to detect and identify objects at a distance using radio waves. Radar systems emit radio waves that bounce off objects, returning echoes to the radar receiver. By analyzing these echoes, radar can determine an object's distance, speed, size, and direction. It is commonly used in various applications, including air traffic control, weather forecasting, maritime navigation, military operations, and automotive safety systems. The ability to operate in various weather conditions and the capability for real-time tracking make radar an essential technology for observation and navigation, significantly enhancing situational awareness in many fields.