A new type of two - dimension codeword structure of ocdma system and it ' s realization method 型三角剖分上的双周期三次样条函数空间
This dissertation is around the study of optical cdma systems and their key techniques 本文围绕ocdma系统及其关键技术展开研究工作。
At the same time , we will make the experiment research on spread - time incoherent ocdma system 同时，开展了时域非相干ocdma的实验工作。
Secondly , the fbgs based encoders / decoders for all versions of ocdma system are investigated 其次，重点研究了各种类型ocdma系统中的fbg编解码器。
6 study channel code , multi - user detection and other detection techniques of optical cdma 6 、对ocdma的信道编码、多用户检测及其它检测技术进行了研究。
2 establish the mathematical model of optical cdma , discuss the key techniques on optical cdma 2 、建立了ocdma的数学模型；对ocdma中的关键技术进行了讨论。
The different kinds of 2 - d and 3 - d ocdma systems are introduced in chapter two 第二章主要介绍多维ocdma系统的分类,研究不同多维ocdma系统的结构以及误码率特性。
The main results are as follows : 1 . expatiating on the principle and key technologies of w - ocdma system 主要内容如下: 1 .阐述了w - ocdma通信系统原理及其关键技术。
And a novel method is applied to calculate the precise ber caused by multiple user interference 并利用了一种新的组合方法精确地计算出采用双光硬限幅器的ocdma系统因多用户干扰而引入的ber 。
One special address codeword which is a “ 0 / 1 ” sequence of certain code - length is assigned to each user in advance 在ocdma系统中,每一个用户预先被分配一个特定的地址码,即一个字长的0 / 1序列。
