发射分集技术目前是无线通信系统研究的一个热点。
Transmit diversity technique is a hotspot in the research of wireless communication system.
提出了一种新的频域多普勒分集技术的OFDM系统。
A novel frequency domain Doppler diversity technique for OFDM systems is proposed.
在移动通信中，分集技术是一种最有效的抗衰落技术。
Diversity is an effective technique on combating channel fading in mobile communications.
近年来结合OFDM的传输分集技术得到了普遍关注。
The OFDM transmitter diversity has gotten more attention in recent years.
多天线空间分集技术是抵抗无线信道衰落的有效手段。
It is well accepted that spatial, or multiple-antenna, diversity is an efficient technique to combat the negative effects of channel fading in wireless networks.
最后，本文提出基于网络编码协作分集技术的切换方案。
Lastly, we propose a handover plan based on network-coded cooperative diversity technology.
本文提出了一种应用传输分集技术改善数字水印的稳健性的方案。
This paper present a scheme that applies transmit diversity technique to improve robustness of digital watermarking.
协作分集技术能够克服多径衰落，有效的改善系统传输的可靠性。
Cooperative diversity technology can overcome the multipath fading and improve the effectiveness of system transmission.
近年来，空时编码作为一种发送分集技术已引起人们广泛的关注。
In recent years space-time coding has attracted wide attention as a transmit diversity technology.
本文针对移动信道的特性，综述了分集技术在数字移动通信中的应用。
In this paper applications of diversities directed against the property of the mobile channel for communications are summarized.
在该算法的基础上，提出了改进的基于发射分集技术的OMMSE算法。
The OMMSE algorithm which is based on an improved transmit diversity have been proposed.
考虑对数路径损耗模型下采用非再生信道的协作分集技术提高信道容量问题。
This paper considers a non-regenerative cooperative diversity technique under the well-known log-distance path loss model.
将多普勒分集技术应用于OFDM系统，可以有效地对抗多普勒扩展对系统性能的影响。
Applying Doppler diversity in OFDM system can combat the effect of Doppler spread on system performance.
而V-BLAST虽然克服了D-BLAST边界损耗的缺点，但它没有利用发射分集技术。
V-BLAST overcomes the limitation of D-BLAST, but it does not utilize the transmit diversity.
由于MIMO雷达同时采用了空间分集和信号分集技术，所以它表现出许多不同于传统雷达的性能。
Because of the application of the space diversity and the signal diversity techniques, the performances of MIMO radar have many differences from the conventional radars.
研究表明，采用极化分集技术的MIMO系统具有良好的非相关衰落特性，信道容量得到显著提高。
Simulation results show that MIMO wireless system using polarization diversity is of excellent fading characteristic, and channel capacity is increased effectively.
特别是在移动台低速移动，而信道可用径较少的环境下，发送分集技术可以获得相当可观的性能增益。
Transmission diversity can achieve a considerable performance gain especially in the channel that lacks of available paths.
MIMO雷达采用了空间分集与信号分集技术，与传统相控阵体制雷达相比，可望获得更高的目标检测性能。
Compared with the conventional phased array radar, MIMO radar may acquire a better target detection performance by exploiting space diversity and signal diversity techniques.
采用复合编码扩频技术、隐分集技术以及多媒体数据压缩技术，实现了空地大容量高速、抗干扰多媒体数据传输。
Hybrid spread spectrum, rake and multiple data compressing technology are used to realize air to ground mass high-speed, anti-jamming multiple data transmission.
采用空间分集技术，通过使用多发送天线和多接收天线系统（MIMO系统），可以从一定程度上保证传输信号的质量。
With the introduction of space diversity, by using multi -sending antennas and multi -receiving antennas system(MIMO), we can improve the quality of the signals.
本文在传统的天线一维空间分集的基础上结合RAKE分集技术，提出了一种具有最优合并方案的双天线rake分集接收机结构。
Based on the antenna diversity and RAKE diversity, a new dual-antenna RAKE diversity model is put forward which features optimum combining.
主要介绍了发射分集技术中用于抗信道衰落和提高系统容量的空时分组码和分层空时码的原理和基本特点，并对这些空时编码技术进行了性能分析。
To overcome the bad performance in combating fading of BLAST and low code rate of STBC, a layered structure STBC is introduced in this article by combining BLAST and STBC.
空时编码技术通过空间和时间分集接收能有效增加信道容量。
Space -time coding can increase channel capacity by using the space and time diversity technique.
单用户检测中的关键技术很多，主要有接收端和发送端的同步，信道估计和分集等。
There are many key technologies about the single-user detection, such as synchronization between receiver and transmitter, channel estimation and diversity.
CDM系统虽然获得了频率分集增益，但是，它必须通过有效的检测技术才能使其性能较之OFDM系统有所改善。
Although the additional frequency diversity gain can be attained, by using efficient detection techniques, the performance of OFDM-CDM system is better than that of conventional OFDM.
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。
Spatial multiplexing and space diversity gain of a system can be extracted through MIMO technique.
单用户检测中的关键技术很多，主要有接收端和发送端的同步，信道估计和分集等。
There are lots of key technologies about single user detection, such as synchronization between receiver and transmitter, channel estimation and diversity.
对OFDM系统提出将空时编码与自适应功率控制技术相结合，给出了仿真结果，提高了分集增益和自适应增益。
For the OFDM system, a scheme of combining space-time code with the adaptive power control technology is proposed with simulation results, which increases the diversity gain and the adaptive gain.
本文首先讨论了移动通信信道的各种参数对信道估计的影响，介绍了频率选择性信道的抽头延迟线模型和分集接收技术，在此基础上阐述了RAKE接收机的原理。
The tapped delay model of the multi-path frequency selective fading channels as well as the diversity receiver technique is introduced, and the principles of RAKE receiver are described.
本文首先讨论了移动通信信道的各种参数对信道估计的影响，介绍了频率选择性信道的抽头延迟线模型和分集接收技术，在此基础上阐述了RAKE接收机的原理。
The tapped delay model of the multi-path frequency selective fading channels as well as the diversity receiver technique is introduced, and the principles of RAKE receiver are described.
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