phase encoding

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phase encoding

[′fāz in′kōd·iŋ]
(computer science)
A method of recording data on magnetic tape in which a logical 1 is defined as the transition from one magnetic polarity to another positioned at the center of the bit cell, and 0 is defined as the transition in the opposite direction, also at the center of the cell. Also known as Manchester coding.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.


(1) (Phase Encoding) An early magnetic encoding method used on 1600 bpi tapes in which a 1 is an up transition and a 0 is a down transition in the center of the bit cell.

(2) (Processing Element) One of multiple CPUs in a parallel processing system.

(3) (Professional Engineer) An engineering licensure based on a combination of education and experience. Although each state varies its regulations, the minimum requirements are a four year engineering degree from an accredited school, four years of professional engineering experience and successful completion of two stringent exams along the way. It is estimated that only about 20% of practicing engineers in the United States are licensed.
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References in periodicals archive ?
The experiment was repeated M = 100 number of times, wherein the strength of the pulse was incremented with each phase encoding step according to [g.sub.[alpha]] = [alpha] - M/2 - 1/2.
According to the inventors, the very small size of the resolvable spatial element in the hologram (approx 0.01[micro]) is one of the factors which makes the key very difficult to decipher, and is made more difficult by the amplitude phase encoding of the wave.
However, standard fast spin echo includes extra phase encoding gradients that follow each 180 [degrees] pulse.