multilevel modulation中文是什么意思

• 多级调制

• "modulation"中文翻译    n. 调整，调节；(声调的)抑扬，变化；【音乐】转调，变 ...
• "multilevel" 中文翻译 :    多电平的; 多级的, 多层的; 多能级的; 多水平的
• "multilevel action" 中文翻译 :    多级作业; 多级作用
• "multilevel addre" 中文翻译 :    多级地址
• "multilevel address" 中文翻译 :    多级地址
• "multilevel addressing" 中文翻译 :    多极编址; 多级编址; 多级地址; 多级定址; 多级寻址
• "multilevel algorithm" 中文翻译 :    多级算法
• "multilevel approach" 中文翻译 :    多水平法
• "multilevel backtracking" 中文翻译 :    多级加溯
• "multilevel circuit" 中文翻译 :    多级电路
• "multilevel code" 中文翻译 :    多进制编码
• "multilevel combination" 中文翻译 :    多层次联合
• "multilevel control" 中文翻译 :    多级控制
• "multilevel decision" 中文翻译 :    多级决策
• "multilevel device" 中文翻译 :    多级设备
• "multilevel elevator" 中文翻译 :    多层(高度)升运器, 可调装卸高度的升运器; 多层升运器; 多级高度升运器
• "multilevel hierarchy" 中文翻译 :    多级层次结构; 多级结构, 多级分层, 多级层次
• "multilevel index" 中文翻译 :    多级索引
• "multilevel insulator" 中文翻译 :    多层绝缘体
• "multilevel intake" 中文翻译 :    分层取水式进水口
• "multilevel integration" 中文翻译 :    多层集成电路
• "multilevel interrupt" 中文翻译 :    多级中断
• "multilevel laser" 中文翻译 :    多能级激光器
• "multilevel logic" 中文翻译 :    多值逻辑
• "multilevel marketing" 中文翻译 :    传销

• Chapter 2 is detailed to introduce the realization principle of the adaptive multilevel modulation and its deciding threshold of choosing modulated method aggregate under the single channel , and discussed some main parameters that have great impact to modulation performance
  论文第二章详细介绍了单个信道条件下自适应多元调制方式的实现原理及其选择调制方式集判决门限的确定，同时对调制性能影响较大的几个重要参数进行了分析。
• Multi - carrier adaptive multilevel modulation technology maybe regards as a kind of transform combination by n single - carrier adaptive multilevel modulation technology approximatively . multi - carrier transmission can improve performance of the attenuation consumedly but single - carrier transmission ca n ' t
  多载波自适应多元调制可以近似看成由n个单载波多元调制的变换组合，但由多载波传输对衰落的改善是单载波传输所不能比拟的。
• Chapter 3 studied the results that come from the combination of the multi - carrier transmission technology and the adaptive multilevel modulation technology in detail , and bringed up to apply the technology to wireless channel transmission . the feasibility and advantage been testified by computer simulink
  第三章详细讨论了多载波传输和自适应多元调制相结合的效果，提出将这种技术应用于无线信道传输的想法并仿真证明其可行性和优越性。
• A serially concatenated iterative scheme ( bpcm - id ) combining low - density parity - check codes ( ldpc ) with multilevel modulation is proposed . differ from other serially concatenated iterative decoding schemes , the whole iterative process of bpcm - id is divided into outer iteration and inner iteration to avoid too much errors feedback to the demapper which may cause severe degradation of decoding performance
  论文提出了一种新的多级ldpc码的概念、基本特性、构造准则和搜索算法,给出一种融合mlc / bicm的联合编码调制系统框架,与传统mlc系统区别在于用一个多级ldpc码取代多个分量码。
• Based on the communication engineering application , several practical problems been discussed after introducing multi - carrier adaptive multilevel modulation principle . in thesis , alterable channel model been designed and realized dynamic choosing modulated method aggregate to subchannel , and theoretic analysis and computer simulink keep consistent
  本章在详细介绍多载波自适应多元调制原理的基础上讨论了通信工程中的几个实际问题，构造了变化的信道模型并基于此实现子信道调制方式集的动态选择，仿真结论与理论分析一致。
• Based on the existent theory and the engineering application , the thesis study the good performance by combined the adaptive modulation technology and the multilevel modulation technology on the simulink model . experiment results show that this combination bring on the high data transmittable efficiency and the well transmission quality . this chapter is a base of next chapter
  根据已提出的基本理论，论文基于工程应用，在仿真模型上对自适应调制和多元调制方式的结合所产生的优良的性能进行了探讨，仿真显示出这种结合带来的高数据传输效率和大的传输质量改善，本章是第三章的基础。