Millimeter wave radar (mmWave) is an active high-frequency radar system that uses electromagnetic waves in the millimeter wave range (30-300 GHz) with a wavelength of 1-10 mm to detect objects and measure their distance, speed, and angle. Unlike traditional radar systems based on long-wave radio waves, mmWave radar, with its much shorter range, can detect objects with greater accuracy and resolution. Additionally, mmWave radar is less affected by weather and other environmental conditions, making it ideal for applications that require reliable performance in challenging environments.