| 字词 | redundant nary signal |
| 释义 | redundant nary signal 冗余n进制信号 A digital signal in which each signal element can take up one of n discrete states and where the average equivalent binary content per signal element is less than the theoretical maximum of log2n. The percentage redundancy of such a signal is given by the expression:1-r&-{e}/r&-{d}log&-{2}n×100 where r&-{d} is the symbol rate of the nary signal and r&-{e} is the equivalent bit rate. Redundant nary signals are produced by line codes such as alternate mark inversion code and MS43. 一种其码元可取n 个离散状态且每个信号码元的平均等效二进制内容小于理论最大值log2n的数学信号。n进制数字信号的百分率冗余度R由下式给出:［1-r&-{e}／(r&-{d}·log&-{2}n)］·100 其中r&-{d}是n进制信号的符号速率,r&-{e}是等效位速率。该值也可以用线路码产生,例如:信号交替反转码、MS43等。 |
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