Radar Basics
Abstract
This chapter introduces the basics of the radar (radio detection and ranging) used to detect target range, direction, and motion. Radar has been used since the second world war. The frequency of the radio waves depends on the radar application. Radar systems are often designated by the wavelength or frequency band in which they operate. Higher frequency systems usually are of lower power due to electronic circuit limitations, and they experience greater atmospheric attenuation. Most airborne radars operate between the L and Ka bands, also known as the microwave region. Many short-range targeting radars, such as on a tank or helicopter, operate in the millimeter band. The shape and contours of the aircraft also greatly ...
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