Phased array: Not all radar antennas must rotate to scan the sky.

Phased array radars were originally used for missile defense.

Phased array radars are valued for use in aircraft since they can track multiple targets.

Phased array transmission was originally developed in 1905 by Nobel Laureate Karl Ferdinand Braun who demonstrated enhanced transmission of radio waves in one direction.

Phased array antenna aiming, or beam steering, is done rapidly by electronically controlling the timing ( the phase ) of the incoming and outgoing signals.

Phased array radars are also commonly found on U. S. Navy ships ( the Aegis system ), and in the U. S. Army's Patriot air defense missile system.

** Phased array ultrasonics

Phased array –

* Phased array

Phased array design is, however, sometimes useful for beamsteering, or for sidelobe mitigation, but making these compromises necessarily reduces directivity.

PAVE PAWS Phased array Radar that replaced BMEWS at Clear AFS, Alaska.

# REDIRECT Phased array

Phased array optics ( PAO ) would implement active camouflage, not by producing a two-dimensional image of background scenery on an object, but by computational holography to produce a three-dimensional hologram of background scenery on an object to be concealed.

* Phased array, also known as a smart antenna, an electronically steerable directional antenna typically used in Radar and in wireless communication systems, in view to achieve beamforming, multiple-input and multiple-output ( MIMO ) communication or space-time coding

* Phased array antennas, which uses beamforming to steer the beam

* Phased array

* Phased array

The Phased array antenna is fabricated at Bharat Electronics Limited ( BEL ), Ghaziabad.

Phased arrays may have hundreds of driven elements.

Phased deliveries have already started.

*: 76 A4B + Phased out from the Canadian Forces since 2005, they were used between 1967 to 2005.

On 1 July 1979, the 7th Missile Warning Squadron ( 7 MWS ) brought a Precision Acquisition Vehicle Entry Phased Array Warning System ( PAVE PAWS ) radar site to Beale, a Protection Level 1, 10-story structure that can detect possible attack by land-based and sea-launched ballistic missiles.

* APAR ( Active Phased Array Radar ): Thales ' multifunction radar is the primary sensor of the Royal Netherlands Navy's De Zeven Provinciën class frigates, the German Navy's Sachsen class frigates, and the Royal Danish Navy's Ivar Huitfeldt class frigates.

The Rajendra Multi-Function Phased Array radar system, designed at the Electronics and Radar Development Establishment ( LRDE ), part of DRDO, is currently in production at Bharat Electronics.

Clear accomplishes these missions using the Solid State Phased Array Radar System ( SSPARS ) radar.

PAVE is an Air Force program name relating to electronic systems, while PAWS stands for Phased Array Warning System.

* Barre Volunteer Fire Company – A Volunteer Fire Department located on 4709 Oak Orchard Rd with a loud 1953 Federal Enterprises Single Tone Low Pitched 10-Horsepower Single Phased Siren that is mounted on top of a red tower.

Phased disbandments began within a few weeks with RIC personnel both regular and auxiliary being withdrawn to six centres in southern Ireland.

* Phased approach – New system is introduced in stages.

The PAVE PAWS ( Precision Acquisition Vehicle Entry Phased Array Warning System ) system was designed to detect incoming submarine-launched ballistic missiles.

The Ontario Condominium Act, 1998 provides an effectively wide range of development options, including Standard, Phased, Vacant Land, Common Element and Leasehold condominiums.

Phased deployment is scheduled for 2008-2011.

* Phased plasma gun-or " PPG ," weapon of choice for EarthForce personnel.

Phased out from June 2008, of the remaining 25 airworthy S. 211s, 21 were sold off to International Air Parts ( IAP ) Group Australia Pty Ltd in 2009 while 4 were shipped back to Singapore, being preserved as museum exhibits.

Phased out in the early 1990s in favor of sending students to Old Colony Regional Vocational Technical High School in Rochester, the vocational program at Apponequet remains in several independent living classes.

As the price of electronics has fallen, phased array radars have become more common.

For information about active as well as passive phased array radars, see also active electronically scanned array.

Other sources of knowledge on the actual space debris environment include measurement campaigns by the ESA Space Debris Telescope, TIRA ( System ), Goldstone radar, Haystack radar, the EISCAT radars, and the Cobra Dane phased array radar.

The system uses a network of sophisticated radars and sensors-including 3D phased array radar-enabling it to be highly effective against all types of air threats.

The three facilities operated their original 1950s vintage radars for more than four decades, but all have been upgraded with more modern phased array radars.

The Thule and Fylingdales sites were upgraded with phased array radars in the 1990s.

The phased array radars operate in the 420-450 MHz ( UHF ) frequency range.

The primary radars of RAF Fylingdales are Active Electronically Scanned Array ( AESA ) ( phased array ) radars, mounted on each face of a truncated tetrahedron, typically referred to as the " pyramid ".

The first SN-2 set had a problem with a huge minimum range of 500 meters, initially requiring the retention of a supplementary B / C or C-1 set with its full set of four Matratze masts, but the alarming drag that full sets of both types of antennas caused, from both radars being installed, later changed the requirement to only a " one-quarter " subset of the earlier Matratze array at the end of a single mast, centrally mounted on the nose of the aircraft when the BC or C-1 UHF radar remained installed.

Systems that feature LPIR include modern Active Electronically Scanned Array ( AESA ) radars such as that on the F / A-18E / F Super Hornet and the electronically steered phased array on the S-300PMU-2 missile.

) For many real-time operations, the speed of such digital calculations is too slow to be of much use ( e. g., for very high frequency phased array radars or for weather calculations ), but the precision of an analog computer is insufficient.

However, once phased array radars compact enough for field use and with reasonable digital computing power appeared they offered a better solution.

However more modern aircraft such as the Rafale with phased array radars can look forward and at the ground simultaneously.