Radar, short for Radio Detection and Ranging, is a technology that uses radio waves to detect the presence, direction, distance, and speed of objects. It is commonly used in various applications such as aircraft navigation, weather monitoring, air traffic control, and military systems. Radar systems typically consist of a transmitter that emits radio waves, a receiver that captures and analyzes the reflected waves, and a display or processing unit to interpret the data. Radar technology continues to evolve with advancements in signal processing, antenna design, and other related areas to improve accuracy, range, and sensitivity of radar systems.