查询词典 permuted cyclic code

The method includes steps: digital watermark technique is adopted to hide information of key data in not key data codes of compressed image; under protection of digital watermark, using protective backup for key data detects whether normal transmitted key data is correct or not so as to detect error code; carrying out cyclic mutual backup by using macro blocks in same positions in front and back macro block set; embedding coded motion vector in form of digital watermark to DCT transformation coefficient, and ensuring that video data are not influenced as best as one can; when error code occurs, if key data backup is correct, then the backup replaces former key data; otherwise, using mean value of key data in adjacent macro blocks within same frame to replace former key data approximately.

本发明中，采用数字水印技术在压缩图像的非关键数据编码中隐藏关键数据信息；通过数字水印保护下的关键数据保护备份来检测正常传输的关键数据是否正确，由此来检测传输误码；用前后宏块组中相同位置的宏块进行循环相互备份；对运动向量进行编码，然后以数字水印的形式嵌入到相对不重要的DCT变换系数中，同时保证视频数据尽量不受影响；在误码发生时，如果关键数据备份正确，则直接替代原关键数据，否则用同一帧内相邻宏块的关键数据的平均值近似替代原关键数据。

The problem of finding stabilizer quantum-error-correcting codes can be transformed into the problem of finding classical self-orthogonal linear codes over the Galois field GF(4) under a Hermitian inner product. A classical cyclic code over the field GF(4) is self-orthogonal with respect to the Hermitian inner product iff the generator polynomial of its dual code is a factor of its generator polynomial.

寻找量子稳定子码的问题可以转化为寻找GF(4)上厄米内积自正交的经典线性码的问题；对于GF(4)上的经典循环码，它是厄米内积自正交的，当且仅当它的对偶码的生成多项式是其生成多项式的因子。

The CRC-CCITT cyclic redundancy check code in international standard is studied in this paper. The polarities check ability, minimum code distance and capacity of correct single bit error of CRC-CCITT are proved by using galois field polynomial theory.

以国际标准CRC-CCITT循环冗余校验码为研究对象，利用近世代数多项式理论证明其奇偶校验性质、最小码距和纠正单比特错误能力。

In Chapter 3, we study a special cyclic code over ring—quadratic residue code over ring.

第三章研究了环上的一类特定循环码－－二次剩余码。

It is proved that two matrix tensor operation can be exchange at permuted similar and this kind permutation matrix is portrayed.

分析了分块矩阵张量积的相关数学特性，证明了在置换相抵意义下两个矩阵的张量积运算可以交换，特别刻画了这类置换矩阵，并由此证明了在置换相抵条件下分块矩阵可以分块地进行张量积运算。

The sequence is permuted pseudo-randomly and is modulated by using m sequence.

仿真实验证明了算法的稳健性和不可觉察性

in this paper ,based on permuted image and svd, we embeddedgray watermark in colour image's dwt components.

本文根据奇异值分解理论把灰度水印嵌入到彩色图像的dwt分量中。

Urbanization is a process of expansion of urban regional space, its fast development can provide employment opportunity for people who transfer from rural area, and it also can offer land of permuted from rural to the urbanization.

城市化是一个城市地域空间不断扩展的过程，它的快速发展为农村转移的人口提供就业机会，从农村居民点用地置换出的土地指标为城市化发展提供有利的建设用地保障。

But none appears to have the combinatorial rule system of human language, in which symbols are permuted into an unlimited set of combinations, each with a determinate meaning.

但看来他们都没有人类语言这样组合的规则体系，在这系统里符号排列变化成一套无限的组合，每一种都有确定的含义。

First, we know all of the characters in the original message, even if they're permuted in the wrong order. This enables us to reconstruct the first column in the suffix sorted list by sorting the characters.

首先，我们知道原始字符串中的所有字符，尽管他们在一个错误的排列顺序，这使得我们可以重新创建第一列通过把全部字符排序的方法。

Panorama Many people are dancing in a large sitting room.

在一个大客厅里，许多人在跳舞。

We fully understand how a microwave oven cooks food, it is first necessary to talk ...

我们充分理解一个微波炉煮的食物，这是首先要谈。。。