查询词典 codes

In the same time, kinds of digital detection methods in optical recording PR channel are also discussed and codes in optical PR channel are surveyed.

同时，对高密度下的各种数值检测方式进行了比较，并探讨编码在光记录部分响应通道中的应用。

And building codes limit the extent to which cement can be diluted with additives.

而水泥的生产方法决定了它的降解程度是很有限的。

First, the method for constructing linear stego-codes is proposed by using the direct sum of vector subspaces.

利用线性空间的直和分解得到了一种线性隐写码的构造方法。

Rains proved that, in the split linear case, is the direct sum of and , where and are the associated codes of in, and is some element of .

Rains 证明了当是分裂型线性码的时候，是与的直和，这里与是它的两个相伴码，。

Finally, discussing the direct sum partition of q-ary images of q〓-ary block codes.

3研究了分组码的格图结构，给出了分组码的有效硬判决译码算法。

It also includes codes for control characters,which are (75).(75) A.printable or displayable

它也包含控制字符的编码，这些编码不能够打印或者显示。

Other users' signals, whose spreading codes do not match this sequence, are not dispread in .

句中的"whose"为关系代词，引导非限定性定语丛句，修饰先行词 signals。

The analysis of simulation result indicates that the CDMA system has much more superior performance on noise-immune; the continuous processing in the part of signal modulation can not improve the efficiency of spectrum in CDMA system; under the situation , making sure that the proximity of the reliability of information transmission to the unsmoothed system, the power of the transmission can decline to 90.5% of the unsmoothed system, the bandwidth of -50dB will decline to almost one half of the unsmoothed system in spread spectrum and dispread spectrum by using continuous WALSH codes.

仿真及分析结果表明：CDMA系统具有更优越的抗噪声性能；信息调制部分的平滑化处理在CDMA系统中不会改善频谱的利用效率；运用平滑化WALSH码进行扩频和解扩时，在保证信息传输可靠性与非平滑化系统接近的情况下，能够将发射功率降低到非平滑化系统的90.5%，-50dB带宽减小到非平滑化系统的一半左右，这有利于降低对临近频段的干扰，提高频谱的利用效率。

Firstly, the M-ary modulated Min-Sum algorithm which based on Maximum Liklihood is provided, however, can not be applied to actual decoding due to its complexity. By applying the so called Generalized Distributive Law, we simplified the Min-Sum decoding for M-ary modulated LDPC codes based on Maximum Likelihood, and obtained what we called Enhanced Min-Sum algorithm.

首先基于最大似然的原理给出了多进制调制下的Min-Sum算法，然后利用广义分配率的原理对基于最大似然译码的多进制Min-Sum算法进行了简化，首次提出了多进制调制下LDPC码的改进Min-Sum算法。

By analyzing the union bound and weight spectrum of turbo codes, we propose the concept of "divisibility of information sequences".

因此，如何进一步地提高Turbo码的性能，对于Turbo码在移动通信系统中的应用具有重要意义。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。