English translation for "空间分集"

space diversity

Example Sentences:

	1.	Spatial multiplexing and space diversity gain of a system can be extracted through mimo technique 多输入多输出( mimo )技术可以为系统提供空间复用增益和空间分集增益。
	2.	Cooperative diversity is a new spatial diversity technology , while power allocation technology directly affects its efficiency and reliability 摘要协同通信是一种新的空间分集技术，而功率分配技术直接影响了协同通信的有效性和可靠性。
	3.	One of the convertion technologies of space diversity is antenna array , which is researched and ultilized in 3g and beyond 3g system 空间分集技术的一种传统的应用技术是通过多天线或天线阵列实现,并在3g , beyond3g等系统中得到研究和应用。
	4.	Among the effective methods to mitigate the fading in wireless communications is transmit diversity , which can utilize the space diversity of transmit antennae to generate the receive diversity and improve the performance of the forward link 发送分集技术是对抗无线信道衰落的重要手段，它能将发送天线的空间分集转化为接收机可以利用的分集方式，以改善前向链路的性能。
	5.	The fourth part considered how to improve system performance by adopting transmission diversity in flat fading channels . in the traditional space - time trellis code design , the space diversity , time diversity and channel code are concerned together to get best space diversity , time diversity and code gain 传统的空时格码把空间分集、时间分集和前向纠错编码联合设计，以n摘要获得最大的空间分集、时间分集、信道编码的增益。
	6.	However , in practical systems , the deployment of antenna array is difficult due to the size and / or price limitation . recently a new form of space diversity , which is based on relay channel model and through users ’ help for each other , named cooperative diversity has become an atructive technology 但是由于尺寸,能量,价格等因素限制,在移动终端使用多根天线具有一定的困难,最近一种基于中继信道模型的,同时利用多个用户的互相协助而实现空间分集的技术? ?协同分集技术,成为一个新的研究热点。
	7.	Because using ofdm , a frequency - selective fading channel can be transformed into multiple frequency - flat fading sub - channels , in the coding process , spatial diversity ( due to multiple antennas ) is integrated with frequency diversity ( due to delay spread ) , therefore , the proposed code can provide higher diversity gain than space - time code alone 该编码利用正交频分复用把频率选择性衰落信道变换成平衰落信道的特性，同时引入了基于多天线的空间分集和基于时延扩展的频率分集，比空时编码具有更高的分集增益。
	8.	Because of the affection of noise and signal fading , in order to high data rate access and high quality , wireless communication need new technology to improve the link reliability and enhance the spectrum efficiency . mimo ( multiple input and multiple output ) can enhance the spectrum efficiency and increase channel capacity greatly , and reduce the multipath affection without spectrum band and power increasing . the 3th generation mobile communication wcdma is coming , with the purpose of putting mimo , stbc ( space time block coding ) , space diversity into practice of wcdma systems , in order to lay the foundation of 3g toward 4g , this dissertation has done some research under this background 在发射机和接收机使用多个天线进行数据传输的多输入多输出( mimo )技术,可以在不增加带宽和天线发送功率的条件下,成倍的提高频谱利用率,提高系统的信道容量,还可以抗多径干扰。第三代移动通信wcdma即将到来,为了将多天线技术( mimo ) ,空间分集技术,空时编码技术用到wcdma系统中去,为第三代移动通信向第四代移动通信系统平稳过渡奠定一定的基础,需要做一些理论上的研究。
	9.	Firstly , we introduce the principles of turbo codes and present the simulation results and performance analysis . secondly , considering some factors on which performance depends , we give some design criterias of turbo codes . finally , in consideration of characteristics of mobile channel , we investigate the combination of turbo coding technique and space diversity technique , namely , space time turbo coding ( sttuc ) technique 本文紧密围绕turbo编码技术，首先介绍turbo码的基本思想和原理，同时给出了turbo码的性能仿真及分析；然后结合turbo的性能要求，给出提高编码性能的一些设计准则；最后结合移动信道的特点，详细的讨论了具有空间分集的turbo编码技术? ?空时turbo编码( sttuc )技术。
	10.	At first , wireless channel and characteristic of radio propagation are investigated in order to learn them . then smart antenna , which will be adopted widely , is researched . finally , the space - time receiver technology under multipath slow fading channels and multipath fast fading channels is studied emphatically , this content is the core of this paper 因此，本文首先研究了无线信道及其电波传播特性，以期对无线移动通信的无线信道有充分的认识；接着研究了必将广泛被采用的智能天线技术(它能引进空间分集，抗信道衰落，并提高系统容量) ；最后，基于对信道的认识并把智能天线技术结合，着重研究了在多径慢衰落信道与多径快衰落信道下的空时接收机技术，这部分内容是本文核心。

Similar Words：

"空间分割制" English translation, "空间分割制交换机" English translation, "空间分割转换" English translation, "空间分隔多工制" English translation, "空间分隔转换网络" English translation, "空间分集保护" English translation, "空间分集接收" English translation, "空间分集式接收机" English translation, "空间分集增益" English translation, "空间分解" English translation