查询词典 numerical coding

Based on genetic algorithm,a new hybrid coding method using the integer and floating number was presented. The enumerable method guarantees each individual in the population to satisfy the constrains, thus the punishment function was avoided. The two adjustable parameters made the evolution process jump out of the local best solution perfectly.The application of the fitness assignment based on Pareto ranking attained inferior solution set of the multi-objective and multiple options were provided to the decision-maker.

设计了一种新的整数和浮点数结合的编码方式；通过列举法使得每代个体满足约束条件，避免了罚函数的使用；可调整的双参数变异算子使进化过程能够较好地跳出局部最优解；应用基于Pareto排序的适应值分配方式得到目标函数的非劣解集，为决策者提供了多种选择方式。

A new method to solve the combinatorial optimization problems with mixed evolutionary algorithm based on natural scale enumerative system coding was proposed in this paper. Elitism strategy, one-point crossover and Gaussian mutation were used in the algorithm. An ingenious method for operation among big parameters was designed, which can avoid overflow and simplify the operation.

在自然进位制编码的基础上，算法采用了遗传算法的单点交叉算子和进化规划的高斯扰动算子，并运用了精英保留策略；算法实现时采用逐位运算法实现大数值运算，避免了运算溢出，减少了运算量。

In recent years, people adopt multi- kind measures to counteract eclipse and multi pathway, such as kinds of coding technique, mistake control technique, modulate and demodulate technique, equipoise and expand frequency technique, and these measures effectively boost up the communications ability of the HF communicate system, and lowered the mistake code rate effectively.

近年来，人们更是采用了各种有效的抗衰落和抗多径的措施，如各种编码技术，差错控制技术，调制解调技术，均衡以及扩频技术，这些措施有效的增强了短波信道的通信能力，降低了误码率。

Furthermore, we propose a hybrid redundancy scheme of replication and erasure coding.

此外，我们提出了一种混合式的数据冗余策略，它兼具传统的复制策略和分片冗余策略的优点。

This course introduces the information theory , which employs probability and ergodic theory to study the statistical characteristics of data and communication systems, and the coding theory , which uses mainly algebraic and geometric tools to contrive efficient codes for various situations.

本课程讲授信息论和编码的基本理论。信息论采用概率论和遍历理论的方法研究数据和通信系统的统计特性，编码论主要使用代数和几何等工具为各种应用环境设计有效的编码。

It can obtain a gain of 4.5dB in channel of Gauss and 9.5dB in channel of Rice. Additionally, performance of bit error rate of component code with SM64QAM and HMsym64QAM is tested. It is concluded that the multilevel coding scheme has specific property of unequal error protection.

另外通过仿真采用标准64QAM调制和对称分级64QAM调制两种调制方式的多级编码方案的各分量码的误码性能，可以看出多级编码方案具有不等差错保护的特性。

Error-control coding technology is very important to reduce error probability and improve dependability in satellite communication.

在卫星通讯中，差错控制编码技术对降低误码率、提高通信的可靠性具有非常重要的作用。

The coding algorithm of H.263 is similar to that used by H.261, however with some improvements and changes to improve performance and error recovery.

庞大的数据量提高了存储与传输的成本，因此视频技术的关键是视频压缩，从而为信息的传输降低成本。

Human ERMAP is a novel gene coding for erythroid membrane-associated protein, which may play a role in erythropoiesis.

人类ERMAP基因是新近发现的编码红细胞膜相关蛋白基因，其功能可能与红系造血活动有关。

AbstractHuman ERMAP is a novel gene coding for erythroid membrane-associated protein, which may play a role in erythropoiesis.

人类ERMAP基因是新近发现的编码红细胞膜相关蛋白基因，其功能可能与红系造血活动有关。

Pachomius manual labour was organized as an essential part of the monastic life; and since it is a principle of the monks as distinguished from the mendicants, that the body shall be self-supporting, external work of one sort or another has been an inevitable part of the life ever since.

根据圣pachomius体力劳动组织作为一个重要组成部分寺院生活；以来，这是一个原则的和尚，作为有别于乞丐，该机构应自支撑，对外工作的这种或那种已一个必然的一部分，生活至今。

In order to study the effects of parametrical rolling on the ship movement and tilts, in allusion to ship's navigating in regular following waves, the equation of ship rolling motion is transformed into normal Mathieu equation by proper variable replacement when strong parametrical excitation in restoring moment varied according to sine or cosine wave.

为研究参数横摇对船舶运动和倾覆的影响，通过对船在规则波上随浪航行时，恢复力矩中出现的1个以正余弦规律变化的强参数激励项进行适当的变量置换，将船舶的横摇运动方程转换成标准形式的Mathieu方程。