multilevel modulation
英 [ˌmʌltɪˈlɛvl ˌmɒdjʊˈleɪʃən]
美 [ˌmʌltaɪˈlɛvəl ˌmɑdʒəˈleɪʃən]
网络 多级调制
双语例句
- Novel Simple Multilevel Space Vector Modulation Method for Cascade Inverter
级联型逆变器的新型简化多电平空间矢量调制方法 - In this scheme, data is divided into different levels, and multilevel code modulation and set partitioning techniques are used to offer unequal error protection to data with different priorities.
把广播数据分成多个优先级，使用多级编码调制和集分割映射技术，为不同优先级的数据提供不同的差错保护。 - Multilevel Parallel Phase Modulation Techniques
高阶并行相位调制技术研究 - Introduction of Research on Multilevel Code Modulation Combined with Turbo Codes
结合Turbo码的多级编码调制研究介绍 - The recently proposed Turbo codes are applied to multilevel modulation, then multistage decoding.
将Turbo码进行多级调制，然后进行多步译码。 - Relationship between multilevel space-vector modulation and multilevel carrier-based modulation
多电平逆变器载波调制与空间矢量调制的等效关系 - At the same time, based on conventional modulation strategies-multi-carrier SPWM applied on multilevel inverter, hybrid modulation strategies are introduced corresponding to hybrid structure.
同时，基于传统的应用于多电平逆变器的多载波SPWM调制策略，提出了对应于组合拓扑结构的组合调制策略。 - The method of multilevel parallel phase modulation ( MPPM) was proposed, which means two parallel multilevel phase shift keying ( MPSK) signals were transmitted with one frequency at the same symbol period.
提出了高阶并行相位调制（MPPM）的方法，即在同一调制符号周期，使用同一频率并行发送2路携带不同信息的高阶相位调制信号。 - The concepts of hybrid multilevel topology and hybrid modulation method are defined clearly in the paper. As followed a new hybrid diode-clamp cascaded multilevel inverter is introduced.
本文定义了混合多电平拓扑、混合调制方法，随后介绍了一种新型的混合二极管钳位级联多电平逆变器。 - Research of Multilevel Inverters Multicarrier PWM Modulation Strategies
多电平逆变器多载波PWM调制策略的研究 - A multilevel laser power modulation method was developed based on the industry standard architecture ( ISA) interface and a complex programmable logic device ( CPLD).
该文描述了一种基于工业标准结构（ISA）总线和复杂可编程逻辑器件（CPLD）的多阶激光功率调制方法。 - Analysis of Propagation Distortion and Calculations of Instantaneous Failure Rate in Digital Microwave Communications with Multilevel Modulation
多电平调制数字微波通信中传播失真的分析和瞬断率计算 - After the unequal error protection of multilevel coded modulation is discussed in detail, a non-uniform signal constellation applied to 8 ASK modulation is designed.
在详细分析了多级编码调制的不等错误保护原理的基础上，设计了一种针对8ASK调制的非均匀信号星座。 - A simple, fast, and generally applicable multilevel space vector modulation ( SVM) algorithm is described in this paper. The complex reference voltage vector is decomposed into an offset vector and a two-level model.
为解决多电平逆变器的空间矢量调制（SVM）算法设计及实现的复杂性问题，提出了基于参考电压分解和零序电压等效的新型多电平SVM算法。 - 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。 - The soft symbol to bit mapping technique is an effective way to combine the multilevel modulation and binary decoding.
比特软信息提取技术是针对多电平调制与二进制译码的结合而采用的一种方法。 - Multilevel laser power modulation is a key technology in multilevel optical data storage systems based on photochromism.
多阶激光功率调制是光致变色多阶光数据存储的一项核心技术。 - In this paper, the recently proposed Turbo-codes are applied to multilevel modulation, then to multistage decoding.
提出了将Turbo码运用于多级调制的码设计和多步译码方法。 - By using the equivalent relationship between the two multilevel modulation methods, the pulse width modulation ( PWM) strategies for multilevel inverters can be studied in a unified system.
这两种多电平调制方法之间的等效关系将使多电平脉宽调制控制策略可以在一个统一的体系下进行研究。 - The multilevel power modulation module can be used with at least four optical levels in optical data storage systems based on photochromism.
该多阶功率调制模块可应用于4阶或更高阶的光致变色多阶光数据存储系统。 - Unequal Error Protection of Multilevel Coded Modulation in Rayleigh Fading Channels
Rayleigh衰落信道中多级编码调制的不等错误保护 - This paper systematically analyzes several modulations and control strategies for state-of-art multilevel inverters. They are multilevel sinusoidal pulse width modulation, space vector modulation, multilevel selective har-monic elimination, space vector control, capacitor balancing techniques etc.
文章对当今水平的多电平逆变器的调制技术和控制策略，如：多电平正弦脉冲宽度调制、空间矢量调制、多电平选择性谐波消除、空间矢量控制以及电容器平衡技术等，进行了系统的分析。 - Based on this theory the reference voltage vector of a multilevel VSI is divided into two parts: base vector and two level vector. Then a new multilevel space vector modulation ( SVM) method is presented.
针对目前多电平空间矢量调制方法计算十分复杂的问题，提出了一种新型的基于参考电压矢量分解理论的多电平逆变器空间矢量调制方法。 - A Turbo Multilevel Coded Modulation Scheme of High UEP
具有不均匀保护特性的Turbo码多级编码调制方案 - Multilevel vestigial sideband modulation ( VSB) in HDTV can be implemented by analog or digital method.
高清晰度电视（HDTV）中的多电平残留边带调制（VSB）既可用模拟的方法也可用数字的方法实现。 - As the gain bandwidth of commercial optical amplifiers is primarily in C-band, the requirement of high spectrum efficiency is increasing in the limited transmission channel. As a result, multilevel modulation and all-optical OFDM techniques are coming into view.
由于商用化的光放大器主要是在C波段，有限的传输通道使得人们对于频谱效率的要求越来越高，于是，多进制调制和全光OFDM技术开始进入人们的视野。 - As an important factor in deciding the effect of inverter control, multilevel pulse-width modulation ( PWM) method is received extensive attentions from scholars at home and abroad.
作为直接决定逆变器控制效果的重要因素&多电平脉宽调制（Pulse-widthmodulation，PWM）方法，更是受到了国内外学者的广泛关注。 - Coherent detection employing multilevel modulation format has become one of the most promising technologies for next generation high speed transmission system due to the high power and spectral efficiencies.
由于高的能量效率和频带效率，结合了先进调制方式的相干检测技术已经成为下一代高速光通信网络最有前途的技术之一。 - Then we focus on the decoding algorithms of multilevel coded modulation, including multi-stage decoding, parallel decoding and hybrid decoding, and their simulation results under AWGN channel are compared. It implies that the performance of hybrid decoding is better than other decoding algorithms.
然后重点研究了多级编码调制的三种译码算法：多级译码、并行译码和混合译码，并且在高斯信道下对其进行了仿真，仿真结果显示混合译码的性能明显优于其它两种译码方法。