Pulse-Doppler radar

Dopplerpulse-Dopplerpulse dopplerpulse doppler radarDoppler radarPulse-Doppler radar performanceDoppler radarsdoppler shiftMedium PRF (pulse repetition frequency) doppler radarpulse Doppler search 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.wikipedia
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Weather radar

Doppler weather radarradarDoppler radar
Pulse-Doppler techniques also find widespread use in meteorological radars, allowing the radar to determine wind speed from the velocity of any precipitation in the air.
Modern weather radars are mostly pulse-Doppler radars, capable of detecting the motion of rain droplets in addition to the intensity of the precipitation.

Look-down/shoot-down

look downlook down shoot downlook-down
This gives pulse-Doppler radars "look-down/shoot-down" capability.
Frequency domain signal processing combined with time domain signal processing, as in pulse-Doppler radar, is a way to eliminate that vulnerability.

Radar

radar stationradarsradar system
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.
Additional filtering and pulse integration modifies the radar equation slightly for pulse-Doppler radar performance, which can be used to increase detection range and reduce transmit power.

Synthetic-aperture radar

synthetic aperture radarSARsynthetic aperture
Pulse-Doppler radar is also the basis of synthetic aperture radar used in radar astronomy, remote sensing and mapping.
(See pulse-doppler radar).

AN/ASG-18

Hughes AN/ASG-18HughesHughes AN/ASG-18 Fire Control System
The Hughes AN/ASG-18 Fire Control System was a prototype airborne radar/combination system for the planned North American XF-108 Rapier interceptor aircraft for the United States Air Force, and later for the Lockheed YF-12.
It was the US's first Pulse-Doppler radar, giving it look-down/shoot-down capability, and was also the first track while scan radar (could track one target at a time).

Fighter aircraft

fighterfightersjet fighter
Pulse-Doppler systems were first widely used on fighter aircraft starting in the 1960s.
Other innovative technologies introduced in fourth-generation fighters included pulse-Doppler fire-control radars (providing a "look-down/shoot-down" capability), head-up displays (HUD), "hands on throttle-and-stick" (HOTAS) controls, and multi-function displays (MFD), all essential equipment.

Pulse-Doppler signal processing

Doppler CFAR detection processingPulse-Doppler signal processing detailed explanation
* Pulse-Doppler signal processing detailed explanation
This signal processing strategy is used in pulse-Doppler radar and multi-mode radar, which can then be pointed into regions containing a large number of slow-moving reflectors without overwhelming computer software and operators.

Radar signal characteristics

pulse widthfrequency spectrumfrequency, pulse repetition rate, and other characteristics
Clutter creates a vulnerability region in pulse-amplitude time-domain radar.
The most effective clutter reduction technique is pulse-Doppler radar with Look-down/shoot-down capability.

Range ambiguity resolution

Range ambiguity resolution detailed explanationrange ambiguity resolution process
* Range ambiguity resolution detailed explanation
This signal processing technique is required with pulse-Doppler radar.

Ambiguity resolution

Ambiguity resolution detailed explanationAmbiguity resolution process explanation
* Ambiguity resolution detailed explanation
This is required for pulse-Doppler radar signal processing.

Frequency ambiguity resolution

ambiguous velocityFrequency ambiguity resolution detailed explanationFrequency ambiguity resolution process explanation
* Frequency ambiguity resolution detailed explanation
This is used with pulse-Doppler radar.

North American XF-108 Rapier

XF-108 RapierF-108 RapierXF-108
The Hughes AN/ASG-18 Fire Control System was a prototype airborne radar/combination system for the planned North American XF-108 Rapier interceptor aircraft for the United States Air Force, and later for the Lockheed YF-12.
The F-108 was intended to carry the Hughes AN/ASG-18 radar, the U.S.'s first pulse-Doppler radar set.

AN/SPG-51

SPG-51SPG-51D
Early examples of military systems includes the AN/SPG-51B developed during the 1950s specifically for the purpose of operating in hurricane conditions with no performance degradation.
Aircraft tracking is based on monopulse radar utilizing Pulse-Doppler radar signal processing in MK 74 MOD 14 and MK 74 MOD 15.

Monopulse radar

monopulsemonopulse technique
An explanation of how real and imaginary parts are used with RADAR can be found in the description of Pulse Doppler.

Moving target indication

moving target indicatorground moving target indicationMTI
Doppler has maximum detrimental effect on moving target indicator systems, which must use reverse phase shift for Doppler compensation in the detector.

Pulse repetition frequency

PRFpulse repetition frequenciesmedium pulse repetition frequency
Pulse-Doppler radar was developed during World War II to overcome limitations by increasing pulse repetition frequency.
Medium PRF is used with Pulse-Doppler radar, which is required for look-down/shoot-down capability in military systems.

Doppler radar

DopplerDoppler navigationDoppler navigation radar
Most modern weather radars use the pulse-Doppler technique to examine the motion of precipitation, but it is only a part of the processing of their data.

Continuous-wave radar

continuous wave radarcontinuous wave illuminating radarscontinuous-wave
It combines the features of pulse radars and continuous-wave radars, which were formerly separate due to the complexity of the electronics.
Most modern air combat radars, even pulse Doppler sets, have a CW function for missile guidance purposes.

Doppler effect

Doppler shiftDopplerDoppler shifts
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.

Electronics

electronicelectronic equipmentelectronic device
It combines the features of pulse radars and continuous-wave radars, which were formerly separate due to the complexity of the electronics.

Wind speed

wind velocityspeedwind speeds
Pulse-Doppler techniques also find widespread use in meteorological radars, allowing the radar to determine wind speed from the velocity of any precipitation in the air.

Radar astronomy

radarRadar observationsradar telescope
Pulse-Doppler radar is also the basis of synthetic aperture radar used in radar astronomy, remote sensing and mapping.

Remote sensing

remote-sensingremotely sensedremote sensor
Pulse-Doppler radar is also the basis of synthetic aperture radar used in radar astronomy, remote sensing and mapping.

Klystron

reflex klystronKlystron tubeklystrons
This required the development of the klystron, the traveling wave tube, and solid state devices.