radar beam
111Type 351 Radar — The Type 351 is the Chinese copy of the Russian Reya which came into service in 1960. It is an improved version of earlier Pot Drum (1958) with higher resolutions.It was found primarily in older FACs such as the Hainan.pecifications(Based on… …
112Doppler beam sharpening — A Doppler correction to eliminate background clutter when aircraft radar aerial points in a direction other than straight ahead and consequently the computer breaks each reading into small pieces and reassembles them as a high resolution map …
113height-finder radar — One that indicates the precise height of a target. It has a multilobe beam nodding aerial. Most modern radars are 3 D (three dimensional) and have a height finding function built into them …
114Conical scanning — is a system used in early radar units to improve their accuracy, as well as making it easier to steer the antenna properly to point at a target. Conical scanning is similar in concept to the earlier lobe switching concept used on some of the… …
115Missile guidance — A guided bomb strikes a practice target Missile guidance refers to a variety of methods of guiding a missile or a guided bomb to its intended target. The missile s target accuracy is a critical factor for its effectiveness. Guidance systems… …
116rocket and missile system — ▪ weapons system Introduction any of a variety of weapons systems that deliver explosive warheads to their targets by means of rocket propulsion. Rocket is a general term used broadly to describe a variety of jet propelled missiles… …
117Doppler effect — Change of wavelength caused by motion of the source. An animation illustrating how the Doppler effect causes a car engine or siren to soun …
118Phased array — This article is about general theory and electromagnetic phased array. For the ultrasonic and medical imaging application, see phased array ultrasonics. In wave theory, a phased array is a group of antennas in which the relative phases of the… …
119air warfare — Military operations conducted by airplanes, helicopters, or other aircraft against aircraft or targets on the ground and in the water. Air warfare did not become important until World War I (1914–18). The British, French, German, Russian, and… …
120Measurement and Signature Intelligence — Measurement and Signature Intelligence, or MASINT, refers to intelligence gathering activities that bring together disparate elements that do not fit within the definitions of the major disciplines mentioned above. As a means of collecting… …
