地址码

The results show that the scheme of the bipolarity address code and the higher laser power can improve the system performance.

比较结果表明，双极性地址码方案可提高系统性能；另外，提高光功率还可改善系统性能。

MUX is a multi-input, single-output combinational logic circuit, in the algorithm used in the realization of circuits to address code in accordance with scheduling data.

详细说明：多路选择器是一个多输入，单输出的组合逻辑电路，在算法电路的实现中常用来根据地址码来调度数据。

The effects of data rate on the performance of the system are studied theoretically and experimentally.

随着用户地址码码长的增加，速率超过限制速率对系统性能的影响相对较小。

Starting from the configuration of the optical prime code, a kind of key signature code for the optical code-division multiple access system, based on the linear congruence theory in the finite Galois field, the correlation properties of the basic prime code, the extended prime code and the modified prime code are mathematically analyzed, the distribution of cross-correlation values is given and the overlap area of "1"s in the case of periodically circularly shifting is indicated.

摘 要：围绕OCDMA系统的重要地址码类型--光素数地址码的结构模型，根据有限Galois域上的线性全等理论，系统分析了基本素数码、扩展素数码、修正素数码的互相关特性，指出码字中"1"位的重叠区域。

By constructing a sphere hexagonal grid system based on the Truncated Icosahedrons Projection, this paper focuses on the study of the address coding mechanism of the sphere hexagonal grids, including the hierarchy coding schemes, the study of the positional relations among the grid units and the mutual conversion between the address codes of the grid units and the geographical coordinates.

本文通过构建基于截顶正二十面体投影的球面六边形网格系统，对球面六边形网格的地址编码机制进行了重点研究，包括网格的层次编码方案、网格单元位置关系研究和网格单元地址码与地理坐标之间的相互转换。

At the same time, we will make the experiment research on spread-time incoherent OCDMA system.

在本文中，我们对OCDMA的关键技术进行了理论分析，提出了几种新的地址码，提出了一些新方案来改善系统性能。

As a result, LS-OOC based on orthogonal Latin square has been acquired. The large cardinality of LS-OOC is beneficial to synchronous OCDMA system.

研究了有限域上的Latin矩阵与OOC码字的联系，设计出基于正交Latin方阵的LS-OOC码字，自相关旁辦和互相关最大值都为1，非常符合OCDMA通信技术对地址码的要求。

In order to effectively reduce the effects of multi-access interference on the performance of optical code division multiple access communication systems with intensity modulation and direct detection,according to group information, a novel kind of multi-access interference cancellation scheme based on fiber Bragg gratingused with two dimensional address code MPC/OOC is presented.

摘要在强度调制、直接探测的光码分多址通信系统中，为了有效克服并发用户数之间的多址干扰，提高系统的通信性能，根据组信息，针对由光正交码和修正素数码构成的扩时/跳频地址码MPC/OOC，提出一种基于光纤布拉格光栅的多址干扰消除方案，并详细分析了采用这种多址干扰消除方案的光CDMA通信系统的性能。

After S-CDMA processing , the demodulated information and the original information of the same users are equally .

由于地址码的设计方案对用户间的地址码相位要求严格，本文对地址码相位同步问题也进行了深入的研究。

The combination of the code plug's three pre-coded frame location bits and the address codeword's 18 address bits provides over two million different assignable codes.

代码的插件的前三个结合位编码帧的位置和地址码字的18位地址提供200多万种不同的分配代码。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。