Radar (Radio Detection and Ranging) is a technology that uses radio waves to detect and locate objects, such as aircraft or ships, by emitting radio waves and analyzing the reflected signals. A radio beam is a directed stream of radio waves, which can be used for communication or radar applications. In radar systems, the radio beam is focused to enhance detection capabilities and reduce interference from other sources. Both technologies rely on the transmission and reception of electromagnetic waves to gather information about the environment.
The radar that uses a cross-shaped beam is known as a "crossed beam radar" or "cross-beam radar." This type of radar employs two intersecting beams to improve target detection and tracking accuracy by providing coverage in multiple dimensions. The cross-shaped beam pattern allows the radar to effectively scan a larger area and enhances its ability to distinguish between different targets. This design is often utilized in applications such as air traffic control and weather monitoring.
Radio
Radio Detection And Ranging
radio detection and ranging
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Radar - radio - was created on 2009-05-04.
Radar. In 1935, on the 26th Febuary, the radio station at Daventry was used for the first-ever practical demonstration of radar, by its inventor Robert Watson-Watt, who used a radio receiver installed in a trailer to receive signals bounced off a metal-clad bomber flying through radio beam.
The radar that uses a cross-shaped beam is known as a "crossed beam radar" or "cross-beam radar." This type of radar employs two intersecting beams to improve target detection and tracking accuracy by providing coverage in multiple dimensions. The cross-shaped beam pattern allows the radar to effectively scan a larger area and enhances its ability to distinguish between different targets. This design is often utilized in applications such as air traffic control and weather monitoring.
When a radar beam hits an object, it gets reflected back towards the radar receiver. The time difference between sending the radar signal and receiving the reflected signal is used to calculate the distance of the object from the radar. The radar can also determine the object's speed and shape based on how the radar signal is reflected.
Radar stands for RAdio Detection And Ranging. So ... radio.
Radar stands for RAdio Detection And Ranging. So ... radio.
radar radar
Radio
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The pointing direction of a radar beam refers to the direction in which the radar antenna is aiming or oriented to transmit or receive electromagnetic waves. This direction is crucial for accurately detecting and tracking targets, as it determines the coverage area of the radar system. The radar beam can be steered electronically or mechanically to scan a specific area or follow a moving target.
In a relationship stand point it means that you are trying to keep that relationship from leaking out to others. !z Flying under the radar means to fly an aircraft below the scan of a radar beam. The reason why, ther is a cut off in elevation angle that cuts off the radar beam before it intersects with the sea or land. When a radar beam is almost parallel top a flat surface that is also in the beam returns from a vertical can suffer from multi path effect that cause cancelations, and since the beam giver a bigger area with range the effect become greater with range. Radar engineers know this and build the elevation profile to be cosec beam-shape in such that the radar beam cut off just before an intersection with a flat surface like land or sea. Given this cut off this mean that the radar multipath effect does not occur and detection at altitudes higher then the cut off are not going to surfer from multi path, however in bean that there is a area under the radar beam where the radar is not sensitive to targets, where a aircraft can fly under the Radar. However this phrase has come to mean doing something without being detected.
An RF beam refers to a directed or focused radio frequency signal that is used for wireless communication or radar purposes. It is a concentrated stream of electromagnetic waves in the radio frequency spectrum. RF beams are often used to establish wireless connections over long distances with high accuracy and signal strength.