| 术语 | chain code |
| 释义 | chain code 链(式)码 An arrangement in a cyclic sequence of some or all of the possible different n-bit words, in which adjacent words are related such that each is derivable from its neighbor by displacing the bits one digit position to the left,or right, dropping the leading bit and inserting a bit at the end. The value of the inserted bit needs onlyto meet the requirement that a word must not recur before the cycle is complete, e.g., 000 001 010 101 011 111 110 100 000…. (2n个不同的)n位代码字或其中某些n位代码字组成具有循环特性的一种排列。其相邻的代 码字有如下关系:每一个代码字都是从其相邻的代码字导出,导出方法是把代码的n位都左移或右移一位,去掉最左边或最右边 的一位,尾部或首部添加一位,所加位的值必须保证在该循环内所形成的代码字不重复。例如000 001 010 101 011 111 110 100 000…。 |
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