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Pulse-Doppler radar, the Glossary

Index Pulse-Doppler radar

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.[1]

Table of Contents

  1. 88 relations: Adiabatic process, Air mass, Air traffic control, Air-to-air missile, Aircraft engine, Aliasing, Ambiguity resolution, AN/ASG-18, AN/SPG-51, Autocorrelation technique, Bandwidth (signal processing), Boltzmann constant, Cavity magnetron, CIM-10 Bomarc, Classical mechanics, Clutter (radar), Coherence (physics), Conical scanning, Constant false alarm rate, Continuous-wave radar, Crossed-field amplifier, Decibel, Diffraction, Doppler effect, Doppler radar, Dwell time (radar), Dynamic range, Electronics, Exocet, Fast Fourier transform, Federation of American Scientists, Fighter aircraft, Frequency ambiguity resolution, Frequency domain, Gain (antenna), Gain (electronics), Glider (aircraft), Harpoon (missile), Helicopter, Identification friend or foe, Jet aircraft, Kh-22, Klystron, L band, Lockheed YF-12, Look-down/shoot-down, Massachusetts Institute of Technology, Monopulse radar, Moving target indication, Nap-of-the-earth, ... Expand index (38 more) »

  2. Radar signal processing
  3. Science and technology during World War II

Adiabatic process

An adiabatic process (adiabatic) is a type of thermodynamic process that occurs without transferring heat or mass between the thermodynamic system and its environment.

See Pulse-Doppler radar and Adiabatic process

Air mass

In meteorology, an air mass is a volume of air defined by its temperature and humidity.

See Pulse-Doppler radar and Air mass

Air traffic control

Air traffic control (ATC) is a service provided by ground-based air traffic controllers (people) who direct aircraft on the ground and through a given section of controlled airspace, and can provide advisory services to aircraft in non-controlled airspace. Pulse-Doppler radar and air traffic control are radar.

See Pulse-Doppler radar and Air traffic control

Air-to-air missile

Python family of AAM for comparisons, Python-5 (displayed lower-front) and Shafrir-1 (upper-back) An air-to-air missile (AAM) is a missile fired from an aircraft for the purpose of destroying another aircraft (including unmanned aircraft such as cruise missiles).

See Pulse-Doppler radar and Air-to-air missile

Aircraft engine

An aircraft engine, often referred to as an aero engine, is the power component of an aircraft propulsion system.

See Pulse-Doppler radar and Aircraft engine

Aliasing

In signal processing and related disciplines, aliasing is the overlapping of frequency components resulting from a sample rate below the Nyquist rate.

See Pulse-Doppler radar and Aliasing

Ambiguity resolution

Ambiguity resolution is used to find the value of a measurement that requires modulo sampling. Pulse-Doppler radar and Ambiguity resolution are radar.

See Pulse-Doppler radar and Ambiguity resolution

AN/ASG-18

The Hughes AN/ASG-18 Fire Control System was a prototype airborne fire control radar system for the planned North American XF-108 Rapier interceptor aircraft, and the Lockheed YF-12 for the United States Air Force.

See Pulse-Doppler radar and AN/ASG-18

AN/SPG-51

The AN/SPG-51 is an American tracking / illumination fire-control radar for RIM-24 Tartar and RIM-66 Standard missiles.

See Pulse-Doppler radar and AN/SPG-51

Autocorrelation technique

The autocorrelation technique is a method for estimating the dominating frequency in a complex signal, as well as its variance.

See Pulse-Doppler radar and Autocorrelation technique

Bandwidth (signal processing)

Bandwidth is the difference between the upper and lower frequencies in a continuous band of frequencies.

See Pulse-Doppler radar and Bandwidth (signal processing)

Boltzmann constant

The Boltzmann constant is the proportionality factor that relates the average relative thermal energy of particles in a gas with the thermodynamic temperature of the gas.

See Pulse-Doppler radar and Boltzmann constant

Cavity magnetron

The cavity magnetron is a high-power vacuum tube used in early radar systems and subsequently in microwave ovens and in linear particle accelerators. Pulse-Doppler radar and cavity magnetron are microwave technology, radar and science and technology during World War II.

See Pulse-Doppler radar and Cavity magnetron

CIM-10 Bomarc

The Boeing CIM-10 Bomarc ("Boeing Michigan Aeronautical Research Center") (IM-99 Weapon System prior to September 1962) was a supersonic ramjet powered long-range surface-to-air missile (SAM) used during the Cold War for the air defense of North America.

See Pulse-Doppler radar and CIM-10 Bomarc

Classical mechanics

Classical mechanics is a physical theory describing the motion of objects such as projectiles, parts of machinery, spacecraft, planets, stars, and galaxies.

See Pulse-Doppler radar and Classical mechanics

Clutter (radar)

Clutter is the unwanted return (echoes) in electronic systems, particularly in reference to radars.

See Pulse-Doppler radar and Clutter (radar)

Coherence (physics)

Coherence expresses the potential for two waves to interfere. Pulse-Doppler radar and Coherence (physics) are radar signal processing.

See Pulse-Doppler radar and Coherence (physics)

Conical scanning

Conical 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. Pulse-Doppler radar and Conical scanning are radar.

See Pulse-Doppler radar and Conical scanning

Constant false alarm rate

Constant false alarm rate (CFAR) detection refers to a common form of adaptive algorithm used in radar systems to detect target returns against a background of noise, clutter and interference. Pulse-Doppler radar and Constant false alarm rate are radar signal processing.

See Pulse-Doppler radar and Constant false alarm rate

Continuous-wave radar

Continuous-wave radar (CW 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. Pulse-Doppler radar and continuous-wave radar are radar.

See Pulse-Doppler radar and Continuous-wave radar

Crossed-field amplifier

A crossed-field amplifier (CFA) is a specialized vacuum tube, first introduced in the mid-1950s and frequently used as a microwave amplifier in very-high-power transmitters. Pulse-Doppler radar and crossed-field amplifier are microwave technology.

See Pulse-Doppler radar and Crossed-field amplifier

Decibel

The decibel (symbol: dB) is a relative unit of measurement equal to one tenth of a bel (B).

See Pulse-Doppler radar and Decibel

Diffraction

Diffraction is the interference or bending of waves around the corners of an obstacle or through an aperture into the region of geometrical shadow of the obstacle/aperture.

See Pulse-Doppler radar and Diffraction

Doppler effect

The Doppler effect (also Doppler shift) is the change in the frequency of a wave in relation to an observer who is moving relative to the source of the wave. Pulse-Doppler radar and Doppler effect are radar signal processing.

See Pulse-Doppler radar and Doppler effect

Doppler radar

A Doppler radar is a specialized radar that uses the Doppler effect to produce velocity data about objects at a distance. Pulse-Doppler radar and Doppler radar are radar.

See Pulse-Doppler radar and Doppler radar

Dwell time (radar)

Dwell time (TD) in surveillance radar is the time that an antenna beam spends on a target. Pulse-Doppler radar and Dwell time (radar) are radar.

See Pulse-Doppler radar and Dwell time (radar)

Dynamic range

Dynamic range (abbreviated DR, DNR, or DYR) is the ratio between the largest and smallest values that a certain quantity can assume.

See Pulse-Doppler radar and Dynamic range

Electronics

Electronics is a scientific and engineering discipline that studies and applies the principles of physics to design, create, and operate devices that manipulate electrons and other electrically charged particles.

See Pulse-Doppler radar and Electronics

Exocet

The Exocet is a French-built anti-ship missile whose various versions can be launched from surface vessels, submarines, helicopters and fixed-wing aircraft.

See Pulse-Doppler radar and Exocet

Fast Fourier transform

A fast Fourier transform (FFT) is an algorithm that computes the Discrete Fourier Transform (DFT) of a sequence, or its inverse (IDFT).

See Pulse-Doppler radar and Fast Fourier transform

Federation of American Scientists

The Federation of American Scientists (FAS) is an American nonprofit global policy think tank with the stated intent of using science and scientific analysis to attempt to make the world more secure.

See Pulse-Doppler radar and Federation of American Scientists

Fighter aircraft

Fighter aircraft (early on also pursuit aircraft) are military aircraft designed primarily for air-to-air combat.

See Pulse-Doppler radar and Fighter aircraft

Frequency ambiguity resolution

Frequency ambiguity resolution is used to find the true target velocity for medium pulse repetition frequency (PRF) radar systems. Pulse-Doppler radar and frequency ambiguity resolution are radar signal processing.

See Pulse-Doppler radar and Frequency ambiguity resolution

Frequency domain

In mathematics, physics, electronics, control systems engineering, and statistics, the frequency domain refers to the analysis of mathematical functions or signals with respect to frequency (and possibly phase), rather than time, as in time series.

See Pulse-Doppler radar and Frequency domain

Gain (antenna)

In electromagnetics, an antenna's gain is a key performance parameter which combines the antenna's directivity and radiation efficiency.

See Pulse-Doppler radar and Gain (antenna)

Gain (electronics)

In electronics, gain is a measure of the ability of a two-port circuit (often an amplifier) to increase the power or amplitude of a signal from the input to the output port by adding energy converted from some power supply to the signal.

See Pulse-Doppler radar and Gain (electronics)

Glider (aircraft)

A glider is a fixed-wing aircraft that is supported in flight by the dynamic reaction of the air against its lifting surfaces, and whose free flight does not depend on an engine.

See Pulse-Doppler radar and Glider (aircraft)

Harpoon (missile)

The Harpoon is an all-weather, over-the-horizon, anti-ship missile manufactured by McDonnell Douglas (now Boeing Defense, Space & Security).

See Pulse-Doppler radar and Harpoon (missile)

Helicopter

A helicopter is a type of rotorcraft in which lift and thrust are supplied by horizontally spinning rotors.

See Pulse-Doppler radar and Helicopter

Identification friend or foe

Identification, friend or foe (IFF) is a combat identification system designed for command and control.

See Pulse-Doppler radar and Identification friend or foe

Jet aircraft

A jet aircraft (or simply jet) is an aircraft (nearly always a fixed-wing aircraft) propelled by one or more jet engines.

See Pulse-Doppler radar and Jet aircraft

Kh-22

The Kh-22 "Storm" (Х-22 "Буря", NATO reporting name AS-4 'Kitchen') is a large, long-range anti-ship cruise missile developed by MKB Raduga in the Soviet Union.

See Pulse-Doppler radar and Kh-22

Klystron

A klystron is a specialized linear-beam vacuum tube, invented in 1937 by American electrical engineers Russell and Sigurd Varian,Pond, Norman H. "The Tube Guys". Pulse-Doppler radar and klystron are microwave technology.

See Pulse-Doppler radar and Klystron

L band

The L band is the Institute of Electrical and Electronics Engineers (IEEE) designation for the range of frequencies in the radio spectrum from 1 to 2 gigahertz (GHz).

See Pulse-Doppler radar and L band

Lockheed YF-12

The Lockheed YF-12 was an American Mach 3+ capable, high-altitude interceptor prototype, developed and manufactured by American aerospace company Lockheed Corporation.

See Pulse-Doppler radar and Lockheed YF-12

Look-down/shoot-down

A radar system has look-down/shoot-down capability if it can detect, track and guide a weapon to an air target that (as seen by the radar) is silhouetted against the ground.

See Pulse-Doppler radar and Look-down/shoot-down

Massachusetts Institute of Technology

The Massachusetts Institute of Technology (MIT) is a private land-grant research university in Cambridge, Massachusetts.

See Pulse-Doppler radar and Massachusetts Institute of Technology

Monopulse radar

Monopulse radar is a radar system that uses additional encoding of the radio signal to provide accurate directional information. Pulse-Doppler radar and Monopulse radar are radar.

See Pulse-Doppler radar and Monopulse radar

Moving target indication

Moving target indication (MTI) is a mode of operation of a radar to discriminate a target against the clutter. Pulse-Doppler radar and Moving target indication are radar signal processing.

See Pulse-Doppler radar and Moving target indication

Nap-of-the-earth

Nap-of-the-earth (NOE) is a type of very low-altitude flight course used by military aircraft to avoid enemy detection and attack in a high-threat environment.

See Pulse-Doppler radar and Nap-of-the-earth

Newton's laws of motion

Newton's laws of motion are three physical laws that describe the relationship between the motion of an object and the forces acting on it.

See Pulse-Doppler radar and Newton's laws of motion

Noise (electronics)

In electronics, noise is an unwanted disturbance in an electrical signal.

See Pulse-Doppler radar and Noise (electronics)

Noise figure

Noise figure (NF) and noise factor (F) are figures of merit that indicate degradation of the signal-to-noise ratio (SNR) that is caused by components in a signal chain. Pulse-Doppler radar and noise figure are radar signal processing.

See Pulse-Doppler radar and Noise figure

North American XF-108 Rapier

The North American XF-108 Rapier was a proposed long-range, high-speed interceptor aircraft designed by North American Aviation intended to defend the United States Buttler 2007, p. 90.

See Pulse-Doppler radar and North American XF-108 Rapier

Over-the-horizon radar

Over-the-horizon radar (OTH), sometimes called beyond the horizon radar (BTH), is a type of radar system with the ability to detect targets at very long ranges, typically hundreds to thousands of kilometres, beyond the radar horizon, which is the distance limit for ordinary radar. Pulse-Doppler radar and Over-the-horizon radar are radar.

See Pulse-Doppler radar and Over-the-horizon radar

Performance measurement

Performance measurement is the process of collecting, analyzing and/or reporting information regarding the performance of an individual, group, organization, system or component.

See Pulse-Doppler radar and Performance measurement

Phase (waves)

In physics and mathematics, the phase (symbol φ or ϕ) of a wave or other periodic function F of some real variable t (such as time) is an angle-like quantity representing the fraction of the cycle covered up to t. It is expressed in such a scale that it varies by one full turn as the variable t goes through each period (and F(t) goes through each complete cycle).

See Pulse-Doppler radar and Phase (waves)

Phase noise

In signal processing, phase noise is the frequency-domain representation of random fluctuations in the phase of a waveform, corresponding to time-domain deviations from perfect periodicity (jitter).

See Pulse-Doppler radar and Phase noise

Phase shift module

A phase shift module is a microwave network module which provides a controllable phase shift of the RF signal. Pulse-Doppler radar and phase shift module are microwave technology and radar.

See Pulse-Doppler radar and Phase shift module

Phase-locked loop

A phase-locked loop or phase lock loop (PLL) is a control system that generates an output signal whose phase is fixed relative to the phase of an input signal.

See Pulse-Doppler radar and Phase-locked loop

Phased array

In antenna theory, a phased array usually means an electronically scanned array, a computer-controlled array of antennas which creates a beam of radio waves that can be electronically steered to point in different directions without moving the antennas. Pulse-Doppler radar and phased array are radar.

See Pulse-Doppler radar and Phased array

Pulse compression

Pulse compression is a signal processing technique commonly used by radar, sonar and echography to either increase the range resolution when pulse length is constrained or increase the signal to noise ratio when the peak power and the bandwidth (or equivalently range resolution) of the transmitted signal are constrained. Pulse-Doppler radar and pulse compression are radar signal processing.

See Pulse-Doppler radar and Pulse compression

Pulse-Doppler signal processing

Pulse-Doppler signal processing is a radar and CEUS performance enhancement strategy that allows small high-speed objects to be detected in close proximity to large slow moving objects. Pulse-Doppler radar and Pulse-Doppler signal processing are radar and radar signal processing.

See Pulse-Doppler radar and Pulse-Doppler signal processing

Pulse-repetition frequency

The pulse-repetition frequency (PRF) is the number of pulses of a repeating signal in a specific time unit.

See Pulse-Doppler radar and Pulse-repetition frequency

Radar

Radar is a system that uses radio waves to determine the distance (ranging), direction (azimuth and elevation angles), and radial velocity of objects relative to the site. Pulse-Doppler radar and Radar are air traffic control, Measuring instruments, microwave technology, Navigational equipment and science and technology during World War II.

See Pulse-Doppler radar and Radar

Radar astronomy

Radar astronomy is a technique of observing nearby astronomical objects by reflecting radio waves or microwaves off target objects and analyzing their reflections. Pulse-Doppler radar and Radar astronomy are radar.

See Pulse-Doppler radar and Radar astronomy

Radar cross section

Radar cross-section (RCS), denoted σ, also called radar signature, is a measure of how detectable an object is by radar.

See Pulse-Doppler radar and Radar cross section

Radar display

A radar display is an electronic device that presents radar data to the operator. Pulse-Doppler radar and radar display are radar.

See Pulse-Doppler radar and Radar display

Radar signal characteristics

A radar system uses a radio-frequency electromagnetic signal reflected from a target to determine information about that target. Pulse-Doppler radar and radar signal characteristics are radar signal processing.

See Pulse-Doppler radar and Radar signal characteristics

Radial velocity

The radial velocity or line-of-sight velocity of a target with respect to an observer is the rate of change of the vector displacement between the two points.

See Pulse-Doppler radar and Radial velocity

Ramjet

A ramjet is a form of airbreathing jet engine that requires forward motion of the engine to provide air for combustion.

See Pulse-Doppler radar and Ramjet

Range ambiguity resolution

Range ambiguity resolution is a technique used with medium pulse-repetition frequency (PRF) radar to obtain range information for distances that exceed the distance between transmit pulses. Pulse-Doppler radar and range ambiguity resolution are radar.

See Pulse-Doppler radar and Range ambiguity resolution

Raytheon

The Raytheon Company was a major U.S. defense contractor and industrial corporation with manufacturing concentrations in weapons and military and commercial electronics.

See Pulse-Doppler radar and Raytheon

Refraction

In physics, refraction is the redirection of a wave as it passes from one medium to another.

See Pulse-Doppler radar and Refraction

Remote sensing

Remote sensing is the acquisition of information about an object or phenomenon without making physical contact with the object, in contrast to in situ or on-site observation.

See Pulse-Doppler radar and Remote sensing

Ringing artifacts

In signal processing, particularly digital image processing, ringing artifacts are artifacts that appear as spurious signals near sharp transitions in a signal.

See Pulse-Doppler radar and Ringing artifacts

Semi-active radar homing

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.

See Pulse-Doppler radar and Semi-active radar homing

Speed of light

The speed of light in vacuum, commonly denoted, is a universal physical constant that is exactly equal to). According to the special theory of relativity, is the upper limit for the speed at which conventional matter or energy (and thus any signal carrying information) can travel through space.

See Pulse-Doppler radar and Speed of light

Spread spectrum

In telecommunication, especially radio communication, spread spectrum are techniques by which a signal (e.g., an electrical, electromagnetic, or acoustic) generated with a particular bandwidth is deliberately spread in the frequency domain over a wider frequency band.

See Pulse-Doppler radar and Spread spectrum

Stanford University

Stanford University (officially Leland Stanford Junior University) is a private research university in Stanford, California.

See Pulse-Doppler radar and Stanford University

Stealth aircraft

Stealth aircraft are designed to avoid detection using a variety of technologies that reduce reflection/emission of radar, infrared, visible light, radio frequency (RF) spectrum, and audio, all collectively known as stealth technology.

See Pulse-Doppler radar and Stealth aircraft

Synthetic-aperture radar

Synthetic-aperture radar (SAR) is a form of radar that is used to create two-dimensional images or three-dimensional reconstructions of objects, such as landscapes.

See Pulse-Doppler radar and Synthetic-aperture radar

Time domain

Time domain refers to the analysis of mathematical functions, physical signals or time series of economic or environmental data, with respect to time.

See Pulse-Doppler radar and Time domain

Transponder (aeronautics)

A transponder (short for transmitter-responder and sometimes abbreviated to XPDR, XPNDR, TPDR or TP) is an electronic device that produces a response when it receives a radio-frequency interrogation. Pulse-Doppler radar and transponder (aeronautics) are air traffic control.

See Pulse-Doppler radar and Transponder (aeronautics)

Traveling-wave tube

A traveling-wave tube (TWT, pronounced "twit") or traveling-wave tube amplifier (TWTA, pronounced "tweeta") is a specialized vacuum tube that is used in electronics to amplify radio frequency (RF) signals in the microwave range. Pulse-Doppler radar and traveling-wave tube are microwave technology.

See Pulse-Doppler radar and Traveling-wave tube

Weather radar

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. Pulse-Doppler radar and weather radar are radar.

See Pulse-Doppler radar and Weather radar

Wind speed

In meteorology, wind speed, or wind flow speed, is a fundamental atmospheric quantity caused by air moving from high to low pressure, usually due to changes in temperature.

See Pulse-Doppler radar and Wind speed

Window function

In signal processing and statistics, a window function (also known as an apodization function or tapering function) is a mathematical function that is zero-valued outside of some chosen interval.

See Pulse-Doppler radar and Window function

See also

Radar signal processing

Science and technology during World War II

References

[1] https://en.wikipedia.org/wiki/Pulse-Doppler_radar

Also known as Pulse Doppler, Pulse Doppler Radar, Pulse-Doppler.

, Newton's laws of motion, Noise (electronics), Noise figure, North American XF-108 Rapier, Over-the-horizon radar, Performance measurement, Phase (waves), Phase noise, Phase shift module, Phase-locked loop, Phased array, Pulse compression, Pulse-Doppler signal processing, Pulse-repetition frequency, Radar, Radar astronomy, Radar cross section, Radar display, Radar signal characteristics, Radial velocity, Ramjet, Range ambiguity resolution, Raytheon, Refraction, Remote sensing, Ringing artifacts, Semi-active radar homing, Speed of light, Spread spectrum, Stanford University, Stealth aircraft, Synthetic-aperture radar, Time domain, Transponder (aeronautics), Traveling-wave tube, Weather radar, Wind speed, Window function.