Wave radar is a type of radar for measuring wind waves. Several instruments based on a variety of different concepts and techniques are available, and...

the backscatterer Continuous-wave radar (CW radar) is a type of radar system where a known stable frequency continuous wave radio energy is transmitted...

Radar is a system that uses radio waves to determine the distance (ranging), direction (azimuth and elevation angles), and radial velocity of objects...

an active radar transceiver). Semi-active missile systems use bistatic continuous-wave radar. The NATO brevity code for a semi-active radar homing missile...

ground-based radars are once again being considered for roles such as maritime reconnaissance and drug enforcement. The frequency of radio waves used by most...

Millimeter-wave cloud radars, also denominated cloud radars, are radar systems designed to monitor clouds with operating frequencies between 24 and 110 GHz...

ways of producing the Doppler effect. Radars may be: Coherent pulsed (CP), Pulse-Doppler radar, Continuous wave (CW), or Frequency modulation (FM). Doppler...

point-to-point communication and data links and for radar. This frequency range is used for most radar transmitters, wireless LANs, satellite communication...

A continuous wave or continuous waveform (CW) is an electromagnetic wave of constant amplitude and frequency, typically a sine wave, that for mathematical...

radars and continuous-wave radars, which were formerly separate due to the complexity of the electronics. The first operational pulse-Doppler radar was...

Podsolnukh-E over-the-horizon (OTH) surface-wave radar and the 29B6 Konteyner. The latter, while also being an OTH-radar, has separate locations for the transmitter...

radio waves when they come back is different from the transmitted waves. When the object is approaching the radar, the frequency of the return waves is higher...

continuous-wave radar to locate buried objects was submitted by Gotthelf Leimbach and Heinrich Löwy in 1910, six years after the first patent for radar itself...

further increasing frequency reuse potential. Millimeter waves are used for military fire-control radar, airport security scanners, short range wireless networks...

target illuminator or illuminator radar. A typical fire-control radar emits a narrow, intense beam of radio waves to ensure accurate tracking information...

(like a trained mariner) or by using instruments like weather buoys, wave radar or remote sensing satellites. In the case of buoy measurements, the statistics...

Millimeter wave (mmWave) sensing is a non-contact system of using mmWave radar sensors to measure movement, acceleration, and angles as small as a fraction...

stationary antenna. A synthetic-aperture radar is an imaging radar mounted on a moving platform. Electromagnetic waves are transmitted sequentially, the echoes...

millimeter-wave radar research, military radar targeting and tracking applications, and some non-military applications. A number of passive millimeter-wave cameras...

Hellfire, is a fire-and-forget weapon: equipped with millimeter-wave (MMW) active radar homing, it requires no further guidance after launch—even being...

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

Ku band is common as well. The past success of radar detectors was based on the fact that radio-wave beams can not be narrow-enough, so the detector...

these bands in order to reduce radar clutter. If the radar wavelength is roughly twice the size of the target, a half-wave resonance effect can still generate...

(EHF) (millimeter wave; 30 to 300 GHz) bands as well. Frequencies in the microwave range are often referred to by their IEEE radar band designations:...

active and passive millimeter wave radar. In 2009, DARPA provided funding to develop "Sandblaster", a millimeter wave radar based enhanced vision system...

build equipment to transition from the British long-wave radar to the new microwave centimeter-band radar made possible by the cavity magnetron. The project...

section upgrade. Lockheed Martin offered its dual-mode laser and millimeter wave radar seeker, and Raytheon may submit its tri-mode seeker which adds imaging...

capable of day/night operations. Type 99A is fitted with ST-16 millimeter wave radar suite, designed for target identification (IFF), acquisition and track...

absorb and disperse radar waves. The results were promising against 3000 megacycle frequencies, but poor against 3 cm wave length radar. Work on the program...

there are alternative guidance packages available including a millimetre-wave radar (MMW) seeker and a two-colour imaging infrared (IIR) seeker. All variants...