orthogonal coding meaning in English
正交编码
Examples
- The design principle is introduced and a solution , called cs code , is obtained by the use of two operations to the conventional orthogonal code set ; an operation of cyclic repetition and an operation of angle rotation
文章介绍了这种码的设计准则，并给出了一个具体的实例，称为梳状频谱cs码。 cs码利用传统的正交码通过2步操作得到： 1循环重复操作2角度旋转操作。 - ( c ) propose the scheme to implementing the coder and deoder of optical time - spreading / frequency - hopping , by assigning two orthogonal codes for one user and using these two codes to encoding 1 and 0 respectively , differential detection can be adopted . not only improves system performances in ber , but also resists the interference such as mai , and does n ' t need any control devices to evaluate the optimum decisive threshold
通过给每个用户指定互相关为0的两个地址码分别发送1和0信号以及在接收端采用差分检测技术，避免了ook (开关键控)光通信系统中0不发送光脉冲和ook常规检测方式下最佳判决门限必须根椐用户数等外界环境而改变，从而提高了系统性能和降低了系统的复杂度。 - Abstract : analyzes the performance of unipolar ocdma system using optical orthogonal code ( ooc ) considering the dispersion and nonlinearity effect of the transmission medium . theoretical analysis demonstrates that dispersion and nonlinearity effect deteriorate the system performance . the performance of ocdma system assuming dispersion - shifted fiber as transmission medium is very close to the case neglecting the dispersion and nonlinearity effect . assuming rz initial pulse and optical hard limiter are also possible solutions
文摘:分析了基于光正交码( ooc )的光码分多址系统的性能.数值结果表明：与以前忽略光纤信道对系统性能的情况相比，在考虑了光纤的色散和非线性效应以后，系统性能有了明显的下降.给出了一些建议方案来遏制由色散和非线性效应引起的系统性能恶化