non-return-to-zero

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non-return-to-zero

[′nän ri‚tərn tə ′zir·ō]
(computer science)
A mode of recording and readout in which it is not necessary for the signal to return to zero after each item of recorded data. Abbreviated NRZ.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

NRZ

(Non-Return-to-Zero) A data modulation method in which the 0s and 1s are represented by different polarities, typically positive for 0 and negative for 1. See NRZI.
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References in periodicals archive ?
Nevertheless, we do provide an appendix that presents a description of the polar transform and we summarize the parts of the polar encoding and decoding processes that are directly linked to the error correction in general, and in particular to the alternatives studied herein.
If [u.sup.*] is the bit-vector in column n (i.e., [u.sup.*] is the polar encoding of u), then
In practice, the polar encoding can be completed with the construction shown in Figure 1, where the gray circle nodes are the intermediate nodes.
After the procedure of the polar encoding, all the bits in the codeword [x.sup.N-1.sub.0] are passed to the N-channels, which are consisted of N independent channels of W, with a transition probability of W([y.sub.i] | [x.sub.i]) where [y.sub.i] is ith element of the received vector [y.sup.N-1.sub.0] .