modulation scheme

as a new bandwidth-efficient coded modulation scheme, turbo trellis-coded-modulation ( ttcm) has recently received much attention in channel coding of digital communication systems due to its near capacity performance and high bandwidth-efficiency.

Turbo网格编码调制技术（TTCM）在数字通信系统中引起人们浓厚的兴趣，因为这种将编码和调制结合在一起的新技术不仅有高的差错纠正能力，而且还具有很高的带宽利用率。

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the measuring results demonstrate that the modulation scheme meets the requirements of practicability and general utilization.

测试结果表明，该方案开放性好，结构简单，体积小，具有一定的实用性和通用性。

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an all-optical light modulation scheme based on improved prism- waveguide coupling method is developed.

提出了一种基于改进的棱镜-波导耦合技术实现全光调制的方法。

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The primary causation for the problem that phase current during reverse braking out of control is a short loop by the back electromotive force, and it proposes a double switching modulation scheme that can control braking current effectively.

指出在反接制动中电动势短接回路的存在是造成再生电流失控的根本原因，并提出了相应的双管调制策略。

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A Novel Header Extraction for Optical Packet Switched Networks Using a Modified TOAD with Differential Modulation Scheme

一种基于改进TOAD结构的全光分组信头提取方案

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Proposes a variable rate modulation scheme for wideband data transmission on the Rayleigh fading channelspectral efficiency.

探讨了宽带移动通信传播环境中,瑞利衰落信道对固定速率调制的影响,并研究了变速率调制在宽带瑞利衰落信道中的可行性.

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Carrier frequency and modulation scheme are two key issues in the system design of automotive anticollision radar.

工作频段和工作体制是防撞雷达系统设计的两个主要问题。

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Automatic modulation scheme recognition is the bottleneck of designing multi-modulation scheme software radio receiver. An automatic modulation scheme recognition algorithm called modulation model is presented in this paper.

针对多制式软件无线电接收机设计中的瓶颈问题&自动制式识别算法，本文西安理工大学硕士学位论文提出了一种简单有效的调制模型白动制式识别算法。

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Therefore, we use unipolar switching pulse width modulation scheme to realize a filterless Class-D power amplifier.

因此, 我们利用单极性切换脉波宽度调变技术去实现无滤波器之D类放大器.

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Reduction of Conducted EMI in switching power supplies using chaotic frequency modulation scheme ( CFMS ) is proposed.

利用混沌频率 调制技术 从噪声产生源头上降低了开关电源传导电磁干扰.

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Satellite and cable digital television broadcasting which are used widely usually adopt single carrier modulation scheme.

卫星和有线数字电视广播一般采用单载波的调制方式.

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The number of discrete signal elements that can be transmitted in a given modulation scheme.

在给定调制电路中能被传送的离散信号码元数.

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A coded modulation scheme for concatenated simple parity-check ( SPC ) codes and QAM modulation is studied.

研究级联简单奇偶校验 ( SPC ) 码与QAM调制 的联合优化.

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The paper presented a new Turbo coded modulation scheme using a bit by bit MAP algorithm.

给出了一种基于逐比特MAP算法的Turbo编码与多元调制相结合的编码调制方式。

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a pragmatic channel-adaptive turbo coded modulation scheme, which comes within 2.5 db of the shannon limit, was optimally designed, and then a qos-adaptive scheme was superimposed to build the dual adaptive architecture.

首先给出经优化设计的实用信道自适应Turbo编码调制方案，该方案距Shannon极限仅2.5dB；然后将一个QoS自适应方案加载其上，构成跨层的双重自适应结构。

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In this theme, the modulation scheme of the low-frequency elastic wave through-the-earth communication system and the realization related to the system for hardware and software is a great platform for the further work. The result provides available experience in future to use the technique.

本文介绍的低频弹性波透地通信的调制方案以及相关的软硬件实现，为后续的研究工作做了一个铺垫，提供了一定的借鉴经验。

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Reduction of Conducted EMI in switching power supplies using chaotic frequency modulation scheme ( CFMS) is proposed.

探讨了混沌频率调制技术在开关变换器中抑制电磁干扰的实际效果。

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the results indicate that the best tcm codes with maximum free euclidian distance ( ed) are more than one for a given constraint length and modulation scheme.

搜索结果表明，对一定约束长度和调制方式，具有最大欧氏自由距的TCM好码有多个，文中给出了具有最简编码器结构的TCM好码。

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Orthogonal frequency division multiplexing ( OFDM ) is a bandwidth-efficient modulation scheme with robustness to frequency selective fading.

正交频分复用 ( OFDM ) 具有良好的抗频率选择性衰落性能和充分的带宽利用率.

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