A velocity receiver (also known as a velocity sensor) is a type of sensor that responds to the speed of movement, rather than absolute position. These...

The Close Quarter Battle Receiver (CQBR) is a replacement upper receiver for the M4A1 carbine developed by the US Navy. The CQBR features a 10.3 in (262 mm)...

Ultrasonic thickness gauge Ultra-wideband radar Variable reluctance sensor Velocity receiver Magnetic sensor Charge-coupled device CMOS sensor Angle–sensitive...

frequency. For waves that propagate in a medium, such as sound waves, the velocity of the observer and of the source are relative to the medium in which the...

distance (ranging), direction (azimuth and elevation angles), and radial velocity of objects relative to the site. It is a radiodetermination method used...

speed of light in vacuum, no matter the motion (velocity, acceleration, etc.) of the light emitter or receiver or its frequency, wavelength, direction, polarization...

due to Earth's rotation. The meter per second (m/s) is the SI unit for velocity and the unit recommended by the World Meteorological Organization for reporting...

the receiver is stationary with respect to the medium, and the source is moving directly away from the receiver at a speed of vs for a velocity parameter...

provide position, velocity and time (of the receiver). GNSS receivers have been traditionally implemented in hardware: a hardware GNSS receiver is conceived...

Doppler radar is a specialized radar that uses the Doppler effect to produce velocity data about objects at a distance. It does this by bouncing a microwave...

to their velocity. Note that this speed of 3874 m/s is measured relative to Earth's center rather than its surface where the GPS receivers (and users)...

the receiver r {\displaystyle r} and the source s {\displaystyle s} are moving away from each other, v {\displaystyle v} being the relative velocity and...

Transmitter transmitted energy Receiver backscattered energy, containing much information about the backscatterer Continuous-wave radar (CW radar) is a...

Doppler effect of the returned signal to determine the target object's velocity. It combines the features of pulse radars and continuous-wave radars, which...

in a new sideband position, revealing the velocity to the receiver. The maximum unambiguous target velocity is given by: ± c P R F 4 f {\displaystyle...

requires high-velocity ammunition for reliable functioning. The manufacturers recommend use of 40-grain (2.6 g) round nose bullets in high-velocity loadings...

the receiver, but not the distance down to the reflector. In the simplest geological setting, with a single horizontal reflector, a constant velocity and...

40-grain (2.6 g) bullet, giving it a longer overall length, a higher muzzle velocity and superior performance as a hunting and target round, rendering the ...

An ultrasonic pulse velocity test is an in-situ, nondestructive test to check the quality of concrete and natural rocks. In this test, the strength and...

ADV system equipped with N receivers records simultaneously 4.N values with each sample. That is, for each receiver, a velocity component, a signal strength...

ArmaLite AR-15 was designed to be a lightweight rifle and to fire a new high-velocity, lightweight, small-caliber cartridge to allow infantrymen to carry more...

speed of light is the same for all observers, no matter their relative velocity. It is the upper limit for the speed at which information, matter, or energy...

suffer the predicted time delays. Receiver functions contain detailed information on the average seismic velocities within the crust and on the depth...

combination of factors including the velocity above the reflector, offset, dip of the reflector and the source receiver azimuth in relation to the dip of...

weapons. SPR initially stood for Special Purpose Receiver as it referred to an add-on upper receiver assembly (part of the proposed SOPMOD upgrades),...

velocity and density contrasts across interfaces of layers of rock or sediments as energy travels from a source through the subsurface to a receiver or...

to the water velocity along the acoustic path. To measure 3D velocities, at least three beams are required. In rivers, only the 2D velocity is relevant...

equipment guide: Cold or factory The receiver is missing or has inaccurate estimates of its position, velocity, the time, or the visibility of any of...

hydrocarbon exploration. The velocity is calculated by measuring the travel time from the piezoelectric transmitter to the receiver, normally with the units...

velocity gate pull-off (VGPO) can be used. These send a return signal that slowly changes in frequency, rather than time, hoping the radar's velocity...