本文提出了一种新的两支路分集接收系统。
A new type of two-branch diversity reception system is presented.
在稳态时,此方法还具有对多径信号分集接收的潜力。
In the stable state, this method has the potential of diversity reception for multi-path signals.
讨论了在各种编码方案下空间路径分集接收机的误码性能。
The performance of a space-path diversity receiver in various coding schemes is illustrated.
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.
智能天线和空间分集接收技术是主要的两种空间信号处理技术。
Smart antenna and spatial diversity receiving are two most important spatial signal processing technologies.
如何从接收到的信号恢复出发送信号,涉及到频率分集接收和均衡。
How to retrieve transmitted signals from received signals concerned with frequency diversity and equalization.
因此在频率选择性衰落信道中,采用分集接收可以改善系统的捕获性能。
Therefore, system acquisition performance can be improved if diversity receiver is adopted for the frequency-selective fading channel.
在UW B脉冲信号的角度分集接收中,通常的空时处理中通道时延不易精确地控制。
In usual spatial-time processing for diversity reception of UWB pulses, the channel delays are not easy to be implemented accurately.
数值计算和计算机仿真结果表明了高斯噪声、多用户干扰、多径衰落以及分集接收等对系统性能的影响。
Numerical and simulation results show that the Gaussian noises, multi user interferences, multipath fading and diversity receiving all have impact on the system performance.
在CD MA移动通信系统中,多址接入干扰可以通过多用户检测技术来消除,而分集接收可以减小信道衰落的影响。
In CDMA mobile communication systems, multiple access interference can be cancelled by multiuser detection technique. The degradation by channel fading can be reduced by diversity reception.
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.
针对WCDMA下行链路空时编码发送分集(STTD)确定了基于最大比合并(mrc)的分集接收方案,并对其进行了性能分析。
According to space time block coding based transmitting antenna diversity (STTD) in the WCDMA system, this paper presents a reception scheme based on maximal ratio combining (MRC).
该算法利用接收端进行分集接收处理来改善V-BLAST系统每层的接收信号,对进一步抵抗V-BLAST系统的误差传播效应取得很好的效果。
The algorithm improves every layer of received signal of V-BLAST system using receiving diversity precessing of the receiver and better performance against error propagation.
针对低莱斯因子信道中衰落和码间干扰的影响,提出了带内三重频率分集接收实现方式,给出了采用带内三重频率分集的调制器和解调器的原理框图。
For the influence of fading and ISI on low Rice factor channel, the system adopting diversity technology is presented, and the schematic diagram of the modem adopting diversity technology is given.
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.
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.
其次,讨论分析发射分集和接收分集实现的方法和不同方法的分集度比较。
Secondly, based on transmission diversity and receiver diversity, different methods have been studied.
为了提高接收机的性能,一般采用RAKE接收等分集合并措施,这就需要准确的信道估计信息。
In order to improve the performance of receiver, the technology of RAKE diversity receiving is usually adopted, which needs the exact channel estimation information.
最后证明了采用闭环发送分集方案,可以大大改善接收能干比,提高系统的前向容量。
Finally it is proved that the closed-loop transmission scheme can improve the receiving the energy and the interference ratio and increase the forward-link capacity of the system.
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.
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.
通过在发送端采用预编码器,在接收端采用均衡器,可以实现最大分集传输。
Maximum diversity transmission can be achieved by adopting precoder at the transmitter and equalizer at the receiver.
同时算法利用接收分集进一步提高了估计精度。
The algorithm also exploits receive diversity to further improve the accuracy of estimation.
利用天线分集方案以便在系统中消除接收机接收到的信号的衰减现象的无线数字通信系统(1)是已知的。
Known are wireless digital communication systems (1) applying an antenna diversity scheme to combat fading in a received signal as received by a receiver in the system.
接收侧的纠错能力用于天线的分集切换。
The error correction capability at reception side is applied for antenna diversity switching.
提出的一个问题是由网络中用于组合通过并行分集链路从一个移动台接收的分组的软切换组合节点造成的复杂性。
A problem addressed is the complexity imposed by a soft handover combination node in the network for combining packets received from one mobile station over parallel diversity links.
该算法一方面可以使得接收端线性检测获得满分集,提高传输的可靠性;
On the one hand, this precoding mechanism guarantees the receiver get full-diversity detection performance, which will definitely improve the reliability of transmission;
多接收天线可以对判决似然比和迭代译码的外部信息提供分集增益,从而进一步提高系统性能。
Multi-receive antennas can also provide the diversity gain for LLR information and iterative extrinsic information.
所述技术可允许均衡器考虑到天线分集,例如接收分集、发射分集或可能 兼考虑到二者。
The techniques can allow the equalizer to account for antenna diversity, such as receive diversity, transmit diversity, or possibly both.
所述技术可允许均衡器考虑到天线分集,例如接收分集、发射分集或可能 兼考虑到二者。
The techniques can allow the equalizer to account for antenna diversity, such as receive diversity, transmit diversity, or possibly both.
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