51 relations: Air traffic control, Albert Einstein, Anti-aircraft warfare, Argos system, Aviation, Bistatic radar, Bomber, Christian Doppler, Circulator, Continuous wave, Continuous-wave radar, Dead reckoning, Doppler effect, Electromagnetic radiation, English Electric Canberra, Fast Fourier transform, Frequency, Frequency modulation, Gee (navigation), Green Satin radar, Health care, Inertial navigation system, Knot (unit), Look-down/shoot-down, Mach number, Major League Baseball, Meteorology, Microprocessor, Microwave, Oscillation, Port and starboard, Precipitation, Pulse repetition frequency, Pulse-Doppler radar, Radar, Radar gun, Radio navigation, Radiology, Reflectance, Semi-active radar homing, Solid-state electronics, Special relativity, Speed of light, Statcast, Surface-to-air missile, Transit (satellite), Ultra high frequency, United States Navy, Weather radar, World War II, ..., Yagi–Uda antenna. Expand index (1 more) » « Shrink index
Air traffic control (ATC) is a service provided by ground-based air traffic controllers who direct aircraft on the ground and through controlled airspace, and can provide advisory services to aircraft in non-controlled airspace.
Albert Einstein (14 March 1879 – 18 April 1955) was a German-born theoretical physicist who developed the theory of relativity, one of the two pillars of modern physics (alongside quantum mechanics).
Anti-aircraft warfare or counter-air defence is defined by NATO as "all measures designed to nullify or reduce the effectiveness of hostile air action."AAP-6 They include ground-and air-based weapon systems, associated sensor systems, command and control arrangements and passive measures (e.g. barrage balloons).
Argos is a satellite-based system which collects, processes and disseminates environmental data from fixed and mobile platforms worldwide.
Aviation, or air transport, refers to the activities surrounding mechanical flight and the aircraft industry.
Bistatic radar is the name given to a radar system comprising a transmitter and receiver that are separated by a distance comparable to the expected target distance.
A bomber is a combat aircraft designed to attack ground and naval targets by dropping air-to-ground weaponry (such as bombs), firing torpedoes and bullets or deploying air-launched cruise missiles.
Christian Andreas Doppler (29 November 1803 – 17 March 1853) was an Austrian mathematician and physicist.
A circulator is a passive non-reciprocal three- or four-port device, in which a microwave or radio frequency signal entering any port is transmitted to the next port in rotation (only).
A continuous wave or continuous waveform (CW) is an electromagnetic wave of constant amplitude and frequency, almost always a sine wave, that for mathematical analysis is considered to be of infinite duration.
Continuous-wave radar is a type of radar system where a known stable frequency continuous wave radio energy is transmitted and then received from any reflecting objects.
In navigation, dead reckoning is the process of calculating one's current position by using a previously determined position, or fix, and advancing that position based upon known or estimated speeds over elapsed time and course.
The Doppler effect (or the Doppler shift) is the change in frequency or wavelength of a wave in relation to observer who is moving relative to the wave source.
In physics, electromagnetic radiation (EM radiation or EMR) refers to the waves (or their quanta, photons) of the electromagnetic field, propagating (radiating) through space-time, carrying electromagnetic radiant energy.
The English Electric Canberra is a British first-generation jet-powered medium bomber that was manufactured during the 1950s.
A fast Fourier transform (FFT) is an algorithm that samples a signal over a period of time (or space) and divides it into its frequency components.
Frequency is the number of occurrences of a repeating event per unit of time.
In telecommunications and signal processing, frequency modulation (FM) is the encoding of information in a carrier wave by varying the instantaneous frequency of the wave.
Gee, sometimes written GEE, was a radio navigation system used by the Royal Air Force during World War II.
Green Satin was a doppler radar system developed by the Royal Air Force as an air navigation aid.
Health care or healthcare is the maintenance or improvement of health via the prevention, diagnosis, and treatment of disease, illness, injury, and other physical and mental impairments in human beings.
An inertial navigation system (INS) is a navigation aid that uses a computer, motion sensors (accelerometers), rotation sensors (gyroscopes), and occasionally magnetic sensors (magnetometers) to continuously calculate by dead reckoning the position, the orientation, and the velocity (direction and speed of movement) of a moving object without the need for external references.
The knot is a unit of speed equal to one nautical mile per hour, exactly 1.852 km/h (approximately 1.15078 mph).
A radar system has look-down/shoot-down capability if it can detect, track and guide a weapon to an air target moving below the horizon as seen by the radar.
In fluid dynamics, the Mach number (M or Ma) is a dimensionless quantity representing the ratio of flow velocity past a boundary to the local speed of sound.
Major League Baseball (MLB) is a professional baseball organization, the oldest of the four major professional sports leagues in the United States and Canada.
Meteorology is a branch of the atmospheric sciences which includes atmospheric chemistry and atmospheric physics, with a major focus on weather forecasting.
A microprocessor is a computer processor that incorporates the functions of a central processing unit on a single integrated circuit (IC), or at most a few integrated circuits.
Microwaves are a form of electromagnetic radiation with wavelengths ranging from one meter to one millimeter; with frequencies between and.
Oscillation is the repetitive variation, typically in time, of some measure about a central value (often a point of equilibrium) or between two or more different states.
Port and starboard are nautical and aeronautical terms for left and right, respectively.
In meteorology, precipitation is any product of the condensation of atmospheric water vapor that falls under gravity.
The pulse repetition frequency (PRF) is the number of pulses of a repeating signal in a specific time unit, normally measured in pulses per second.
A pulse-Doppler radar is a radar system that determines the range to a target using pulse-timing techniques, and uses the Doppler effect of the returned signal to determine the target object's velocity.
Radar is an object-detection system that uses radio waves to determine the range, angle, or velocity of objects.
A radar speed gun (also radar gun and speed gun) is a device used to measure the speed of moving objects.
Radio navigation or radionavigation is the application of radio frequencies to determine a position of an object on the Earth.
Radiology is the science that uses medical imaging to diagnose and sometimes also treat diseases within the body.
Reflectance of the surface of a material is its effectiveness in reflecting radiant energy.
Semi-active radar homing (SARH) is a common type of missile guidance system, perhaps the most common type for longer-range air-to-air and surface-to-air missile systems.
Solid-state electronics means semiconductor electronics; electronic equipment using semiconductor devices such as semiconductor diodes, transistors, and integrated circuits (ICs).
In physics, special relativity (SR, also known as the special theory of relativity or STR) is the generally accepted and experimentally well-confirmed physical theory regarding the relationship between space and time.
The speed of light in vacuum, commonly denoted, is a universal physical constant important in many areas of physics.
Statcast is a high-speed, high-accuracy, automated tool developed to analyze player movements and athletic abilities in Major League Baseball (MLB).
A surface-to-air missile (SAM, pronunced), or ground-to-air missile (GTAM, pronounced), is a missile designed to be launched from the ground to destroy aircraft or other missiles.
The Transit system, also known as NAVSAT or NNSS (for Navy Navigation Satellite System), was the first satellite navigation system to be used operationally.
Ultra high frequency (UHF) is the ITU designation for radio frequencies in the range between 300 megahertz (MHz) and 3 gigahertz (GHz), also known as the decimetre band as the wavelengths range from one meter to one decimeter.
The United States Navy (USN) is the naval warfare service branch of the United States Armed Forces and one of the seven uniformed services of the United States.
Weather radar, also called weather surveillance radar (WSR) and Doppler weather radar, is a type of radar used to locate precipitation, calculate its motion, and estimate its type (rain, snow, hail etc.). Modern weather radars are mostly pulse-Doppler radars, capable of detecting the motion of rain droplets in addition to the intensity of the precipitation.
World War II (often abbreviated to WWII or WW2), also known as the Second World War, was a global war that lasted from 1939 to 1945, although conflicts reflecting the ideological clash between what would become the Allied and Axis blocs began earlier.
A Yagi–Uda antenna, commonly known as a Yagi antenna, is a directional antenna consisting of multiple parallel elements in a line, usually half-wave dipoles made of metal rods.