波束赋形

本文给出了TD-SCDMA中的下行波束赋形算法，并对算法进行了仿真。

This paper presents the downlink beamforming algorithm in TD-SCDMA and carries out emulator .

基于多天线的波束赋形技术因其在TDD系统中良好的表现，被确定为LTE技术演进中一个重要的MIMO实现方式。

Beamforming technique is selected as an important MIMO configuration for its excellent performance in TDD mode .

PSO和GA在阵列天线波束赋形中的应用

Application of PSO and GA in beamforming of an array antenna

CDMA通信中空间滤波和波束赋形的性能

Performance of Spatial Filtering and Beamforming in CDMA Communications

用于机载SAR的距离向波束赋形微带天线阵的研究

Study on the Microstrip Antenna Array for Airborne SAR System with the Shaped Beam in the Range Plane

TD-SCDMA系统中基于上行参数的下行波束赋形算法

Downlink beamforming algorithm based on the uplink parameters in TD-SCDMA system

波束赋形技术在TD-SCDMA网络优化中的应用

Application of Beamforming Technology in TD-SCDMA Network Optimization

该文分析了在不同角度扩展和DOA情况下的特征值分布，研究了在不同角度扩展环境下不同波束赋形算法的性能。

This paper firstly analyzes the eigenvalue distribution in environment with different angle spread and DOA .

基于完整CSI研究速率约束下的分布式波束赋形方案。

Distributed beamforming with full CSI was studied when the transmission rates are constrained .

TD-SCDMA系统下行波束赋形技术研究

Downlink Beamforming in TD-SCDMA System

最后，对智能天线的波束赋形技术进行了研究，并对八单元切换波束圆环阵进行了赋形设计和Matlab仿真分析。

It examines the shaped-beam technology of smart antennas in this thesis at last , gives a design for eight-unit switched-beam circular array and the Matlab simulation .

在多次实验室实测结果的基础上，应用现代天线阵列综合理论，设计了硅基MEMSC波段全向波束赋形天线。

In many laboratory test results based on the application of modern antenna array synthesis theory , this thesis provides the design of the silicon-based MEMS C-band omni antenna beamforming .

MIMO技术具有多种实现形式：发射分集技术、空间复用技术以及波束赋形技术等。

MIMO technology can be carried out by many kinds of forms : Transmit diversity technology , spatial multiplying technology , beam forming technology and so on .

在对两大类智能天线系统的介绍中，本文首先讨论了一种以改进的Butler网络实现波束赋形的多波束切换系统，推导了该天线阵的馈电模型并给出了仿真结果；

In the part of introduction of Smart Antennas , we discuss the Switched-Beam Arrays realizing by mending Butler Network at first .

自适应阵列天线中的数字波束赋形（DBF）技术是智能天线数字信号处理部分的核心。

The adaptive digital beamforming ( DBF ) algorithm is the core of adaptive array in the smart antenna technique .

分析了TD-SCDMA系统下行的智能天线算法&发射波束赋形算法，分析了各种发射波束赋形的准则、算法和实现方式。

The downlink algorithm of TD-SCDMA , namely Transmit Beamforming algorithm , is analyzed and different criteria , algorithms and realizations of transmit beamforming are simulated .

接着研究了基于信道相关性信息的波束赋形方案，方案充分利用了信道的相关性信息，为MIMO系统提供信道分集增益。

Then studied the beamforming scheme based on eigenvalue distribution , scheme makes a full use of the channel correlation information , so the MIMO system can get channel diversity gain .

基于空分多址（SDMA）的多用户波束赋形利用用户间的不同信道特性取得多用户分集增益。

Based on SDMA , multi-user beamforming can achieve multi-user diversity gain from the different channel feature .

LTERelease9中的单用户双流波束赋形是Release8中单流波束赋形的直接演进技术，能够进一步增大系统吞吐量。

Single-user dual-layer beamforming in LTE Release 9 , which can further increase the system throughput , is the direct evolution of single-layer beamforming technology in Release 8 .

为验证并定量刻画乘性噪声保障安全传输的能力，针对MISO窃听信道提出一种随机波束赋形安全机制。

To verify and characterize the secrecy capability of multiplicative noise , we propose a random beamforming security scheme in MISO wiretap channel .

虽然对于波束赋形的加权算法，国内外已经进行了比较深入的研究，但对于智能天线在LTE系统中的实际应用研究的还不成熟。

Although beamforming algorithms have been carried out at home and abroad more in-depth study , but the practical application of research of smart antenna system in LTE is not very mature .

推导出波束赋形加权矩阵相位信息的闭合表达式，并在此基础上提出低复杂度最大化接收信号能量（MRP）次优波束赋形算法。

The closed-form expression of phase information was derived for the weighting matrix of beamforming , and then a Maximum Received Power ( MRP ) suboptimal beamforming algorithm was proposed with low computational complexity .

重点研究了MIMO与智能天线结合方案，在详细分析现有方案的基础上，提出了Turbo-BLAST技术与智能天线波束赋形技术相结合的方案。

The combination of MIMO with smart antenna scheme is the key point . Based on existing schemes , analysed the proposed scheme that combine Turbo-BLAST technology with smart beamforming technology in detail .

理论分析了影响基于自适应智能天线技术的码分多址（CDMA）移动通信系统上行链路容量的因素，研究了波束赋形平均干扰因子、小区外与小区内干扰比率因子以及多用户检测因子对系统容量的影响。

An approach to determine the uplink capacity and load of code division multiple access (( CDMA )) systems employing the smart antenna technique was presented . The impacts of average antenna interference gain , inter-intra interference ratio , and multi-user detection factor were determined .

结合TD-SCDMA系统的特点，深入研究了最大信噪比（MSNR）准则和最大信干噪比（MSINR）准则的下行波束赋形算法。

Combined the characteristics of TD-SCDMA , the corresponding algorithms based on Maximum Signal to Noise Ratio criterion and Maximum Signal to Interference and Noise Ratio criterion are investigated thoroughly .

在CDMA的智能天线系统中，自适应天线阵列通过对接收或发送信号的实时波束赋形，将天线增益对准信号传输的方向，从而能够节省发射功率、增加鲁棒性。

In CDMA systems with the smart antenna , the adaptive antenna array can maximize the antenna gain on the direction of signal with the realtime beam-forming of the transmited / received signal . So it can save the power and enhance the robustness of the system .

LTE-Advanced下行都支持波束赋形技术，它不仅能提高系统容量，而且还能提高频谱效率和用户的SINR，解决稠密市区容量瓶颈，抑制干扰信号等等。

The downlink beamforming technology is used to improve the system capacity , spectral efficiency , and users ' SINR , solve dense urban capacity bottlenecks and suppress interference signals in LTE-Advanced system .

仿真表明，该方案与PPPW（Per-PathPer-Weight）波束赋形算法性能相近，同时大大降低计算复杂度。

Simulation results show that the proposed method possesses almost the same performance as the Per-Path Per-Weight ( PPPW ) beamforming method , furthermore the complexity is reduced greatly .

扇区波束赋形基站天线分析与综合

Analysis and Synthesis of Sector Shaped Beam for Base Station Antenna

傅氏变换迭代法波束赋形的精度和效率

Accuracy and efficiency of Fourier transform iterative method for synthesizing pattern