English translation for "色散信道"
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- dispersive channel
Related Translations:
色散: [物理学] dispersion; chromatic dispersion◇色散波 dispersive wave; 色散测定 dispersion measurement; 色散度 dispersity; 色散方程 dispersion equation; 色散关系 [等离子] dispersion relation; 色散角 dispersion angle; 色散离 电介质色散: dielectric dispersion 气象色散: meteorologic dispersionmeteorological dispersion 能量色散: edsedx edxenergy dispersionenergy dispersive x-ray analysis (edx)energy dispersive x-ray detectorenergy dispersive x-ray spectrometer (edx)energy-dispersive x-ray analysisenergy-dispersive 异常色散: abnormal dispersionanomalous dispersion 偏振色散: pd polarization dispersion
- Example Sentences:
| 1. | Precise simulation model design of ofdm systems working under time - varying dispersive channel
系统在时变色散信道中的精确建模与仿真 | | 2. | A time - varying disperse channel is a channel that contain both frequency selective fading and time selective fading
时变色散信道则是同时存在频率和时间选择性衰落的信道。 | | 3. | The idea of diversity is emphasized in this thesis in signal processing perspective , and two schedules are proposed to perform it
文章重点从分集处理的角度来讨论时变色散信道的盲均衡和盲辨识问题，指出了两种采用信号处理方法实现这一思想的基本策略。 | | 4. | After that , the concept of dt canonical model in the cdma context is proposed to overcome the drawbacks of complex exponenial basis expansion models and the continual - time canonical models
在接下来的第五章中，基于提出的离散正则模型，作者对时变色散信道的衰均衡与盲辨识方法进？ | | 5. | In wireless and mobile communications , blind equalization and identification of dispersive channels is a very hot research topic recently , and it is especially a technical difficulty to identify and equalize the time - varying ( tv ) dispersive channels blindly
在无线和移动通信中，色散信道的盲均衡和盲辨识技术是当前国际上的研究热点，而时变色散信道的盲均衡与盲辨识问题更是其中的技术难点。 | | 6. | The very recent results of blind equalization and identification of the tv dispersive channels in wireless communications are reviewed at first in detail , the drawbacks of them are pointed out and the basic idea overcoming them are suggested , which is the motivation of this thesis
论文首先回顾了目前时变色散信道的盲均衡与盲辨识技术的研究进展，指出了其中存在的问题和解决的思路，从而指明了本论文研究的动机和出发点。 | | 7. | Firstly , a new joint filterbank precoders and decision feedback equalizers structure is proposed , and the corresponding optimization result based on the maximal mutual information criterion is derived . secondly , the concept of dt canonical model is proposed , which is very suitable for the task of blind signal processing based on the second - order statistical of the observations . thirdly , the methods of blind equalization and identification of the tv dispersive channels are researched systematically based on the proposed dt canonical model , and a subspace blind identification algorithm of the time - invariant channel matrix is developed
本文创新性的成果在于：提出了预编码-判决反馈联合均衡系统结构，并从理论推导得出了对应的最大互信息量最优化设计结果；首次提出了时变色散信道的离散正则模型概念，该模型适宜于利用观察数据的二阶统计量进行盲信号处理；基于离散正则模型对时变色散信道进行了系统的盲均衡和盲辨识方法研究，提出了对时不变信道矩阵的子空间盲辨识算法；针对误差传播效应问题，提出了可以消除误差传播效应的两级盲辨识算法；提出了基于离散正则模型的直接盲均衡算法；提出了基于特征恢复思想的神经网络直接自适应盲均衡算法。 | | 8. | According to wireless and mobile communication system ' s background , this thesis study on estimation of time - varying dispersive channel from four respects : ( 1 ) aid of pilots , ( 2 ) cyclic prefix ( cp ) , ( 3 ) blind method , and ( 4 ) ofdm system with multiple transmitting antenna , in which the typical ways is decision - feedback algorithm and self - adaptive block algorithm
本文以无线和移动通信系统为背景，从四个方面对时变色散信道下的ofdm系统的信道估计和均衡问题进行了研究。第一是基于导频符号的信道估计方法，第二是基于循环前缀的信道估计方法，第三是信道的盲估计方法，第四是基于多天线ofdm系统的信道估计和均衡方法的研究。 | | 9. | The following algorithms have been proposed and tested in the thesis : 1 frequency selective fading : combine the isomorphism between the input space and the output space and propose a new approach to blind equalization of the channel . compared with conventional methods , the new approach offers lower computational complexity , better performance , and more robust against the over - determination of the system order ; 2 time selective fading : a new approach to the equalization of time selective channel based on the zero - forced equalizer is proposed which is more simple in its structure of algorithm ; 3 time - varying channel : using the instantaneous mean value changes of the output signal to extract the information of channel variations and model it using ar model , kalman filter is then employed to track channel variations , it bears faster ability in tracking the variation of tv channels ; based on the isomorphism between the inputs and the outputs and some of the approaches using in mimo system , a new algorithm of equalization of simo time - varying channel is proposed , which also share the merits of being robust against the over - determination of the system order ; model the time - varying channel using the multi - resolution decomposition wavelets , and then a blind identification method based " on the model is proposed ; at last , a new model for equalization and identification of mimo system is proposed
主要工作在以下几个方面： 1 、针对频率选择性衰落信道：结合输入输出空间同构关系提出一种新的频率选择性信道均衡方法，与传统方法相比，该方法计算量更小，收敛速度更快，性能更优，且对系统阶次的过确定表现稳健，具有实际均衡应用价值； 2 、针对时间选择性衰落信道：提出一种基于迫零均衡的时间选择性信道均衡方法，算法结构简单； 3 、针对时变色散信道：利用瞬态均值曲线提取信道时变信息，对之ar建模，利用卡尔曼滤波器跟踪时变信道抽头变化，可以快速跟踪信道变化；基于输入输出空间之间的同构关系以及多输入多输出系统的处理方法，提出了新的单输入多输出色散时变信道均衡与识别算法，同样具有对信道阶次过确定保持稳健的优点；结合小波多分辨率分析提出一种基于小波模型的信道盲识别算法；研究时变的多输入多输出系统的盲均衡与盲反卷积问题，给出一种时变系统处理模型。 | | 10. | This method can convert the dispersive channels into independent flat fading subchannels , so that it increase the diversity gain of the receiver and outperform that of the original paper as for the ber performance and maximum mutual information while maintaining all the advantages of it . in chapter 4 , the models of the tv dispersive channels are reviewed in signal processing perspective
在第四章中，作者对时变色散信道的信号处理模型进行了研究，提出了离散正则模型的概念，对其进行了详细的讨论，并利用多采样率理论将该模型推广到一般的时变色散信道。 |
- Similar Words：
- "色散限制的" English translation, "色散限制作用" English translation, "色散消退边际" English translation, "色散效应" English translation, "色散斜率补偿光纤" English translation, "色散型分光辐射计" English translation, "色散型光谱辐射计" English translation, "色散型平坦光纤" English translation, "色散性" English translation, "色散性元件" English translation
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