phase-lock detector
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Phase Frequency Detector — A phase frequency detector, in electronics, is a device which compares the phase of two input signals. It has two inputs which correspond to two different input signals, usually one from a voltage controlled oscillator (VCO) and another from some … Wikipedia
Phase-locked loop — PLL redirects here. For other uses, see PLL (disambiguation). A phase locked loop or phase lock loop (PLL) is a control system that generates an output signal whose phase is related to the phase of an input reference signal. It is an electronic… … Wikipedia
Phase detector — A phase detector is a frequency mixer or analog multiplier circuit that generates a voltage signal which represents the difference in phase between two signal inputs. It is an essential element of the phase locked loop (PLL).Detecting phase… … Wikipedia
Lock-in amplifier — A lock in amplifier (also known as a phase sensitive detector) is a type of amplifier that can extract a signal with a known carrier wave from extremely noisy environment (S/N ratio can be as low as 60 dB or even lessFact|date=December 2007). It… … Wikipedia
lock on — i. One of the operating modes of most air interception radar. When the pencil beam, after having searched and found the target, remains pointing at the target and continues tracking it automatically, it is said to “lock on.” ii. In phase lock… … Aviation dictionary
PLL multibit — A PLL multibit or Multibit PLL is a phase locked loop (PLL) which uses more of the information available in the PLL, to achieve improved performance. Unibit PLLs use only one bit of each counter s output bus, the most significant bit (MSB) to… … Wikipedia
Sound localization — refers to a listener s ability to identify the location or origin of a detected sound in direction and distance. It may also refer to the methods in acoustical engineering to simulate the placement of an auditory cue in a virtual 3D space (see… … Wikipedia
chromatography — chromatographer, n. chromatographic /kreuh mat euh graf ik, kroh meuh teuh /, adj. chromatographically, adv. /kroh meuh tog reuh fee/, n. Chem. the separation of mixtures into their constituents by preferential adsorption by a solid, as a column… … Universalium
Global Positioning System — GPS redirects here. For other uses, see GPS (disambiguation). Geodesy Fundamentals … Wikipedia
Mariner 2 — Operator NASA Major contractors Jet Propulsion Laboratory Mission type Flyby … Wikipedia
List of Indian inventions — [ thumb|200px|right|A hand propelled wheel cart, Indus Valley Civilization (3000–1500 BCE). Housed at the National Museum, New Delhi.] [ 200px|thumb|Explanation of the sine rule in Yuktibhasa .] List of Indian inventions details significant… … Wikipedia
