1)multipath fading多径衰落
1.Grouping space time coding OFDM transmission scheme for multipath fading channel;多径衰落信道中分组空时编码OFDM传输方案
2.Research on nonlinear dynamical characteristics of multipath fading channels;多径衰落非线性动力特征初探
3.The performance of transmit diversity in the flat Rayleigh single-path channel and multi-path fading channel by the combination of STBC and traditional beamforming was investigated,and a new scheme of relizing space and time decoding was proposed in the multipath fading channel.研究了空时分组码与传统的波束赋形结合在平坦瑞利单径信道及多径衰落信道下的发射分集的性能,并在多径衰落信道下提出了一种新的实现空时译码的方案。
英文短句/例句
1.Research on Countermeasures Against Multi-Path Fading in WIMAX;WIMAX中抗多径衰落问题的研究
2.Blind equalization algorithm for the QOTDM system in multi-path fading channels多径衰落信道下QOTDM系统的盲均衡算法
3.The Study of The RAKE Receiver in Multipath Fading多径衰落信道中的RAKE接收机性能研究
4.Modeling and Simulation of Communication System in Multi-path Fading Channel多径衰落信道下的通信系统建模仿真
5.Research on the Key Techniques of Multicarrier Systems in Multipath Fading Channel;多径衰落信道中多载波系统的关键技术研究
6.Timing Synchronization Algorithm in OFDM System under Multipath Fading Channel;多径衰落信道下OFDM定时同步算法的研究
7.Analyzing and Improving the TCP under Wireless Multi-path Fading Channel;无线多径衰落信道下TCP协议改进算法的研究
8.The Study of Adaptive Channel Equalizer in Time-varied Multipath Fading Channel;时变多径衰落信道中自适应均衡技术的研究
9.Characteristics Research of the Multipath Fading Channel in Digital Cellular Mobile Communications;数字蜂窝移动通信多径衰落信道的特性研究
10.Study on Microwave Link Budget For land Mobile Satellite Communication systems Considering Multipath;考虑多径衰落星地微波传输链路计算的研究
11.The Simulation of Multi-path Fading Channel in Mobile Communication Based on MATLAB;基于Matlab的移动通信中多径衰落信道的仿真
12.The Correction Techniques and Their Performance Simulation or the Multipath Fading in Digital Communication;数字通信的抗多径衰落技术及其性能仿真
13.Modeling and BER Simulation of QPSK Signal Multipath ChannelQPSK信号多径衰落信道的建模与误码率仿真
14.Research on anti multipath fading plan of mine communication base on OFDM technology基于OFDM技术的矿井通信抗多径衰落方案研究
15.A Novel Timing Synchronization Algorithm Based on Energy Difference over Multi-path Fading Channel多径衰落信道下OFDM时间同步算法的研究
16.Emulatioanal research of spread spectrum communications system over multi-path fading channels多径衰落信道下扩频通信系统的仿真研究
17.OFDM Symbol Synchronization Algorithm in Multi-Path Fading Channel多径衰落信道下的正交频分复用符号同步算法
18.A Study on the Properties of Multipath Fading Channel of Satellite Mobile Communications;卫星移动通信系统多径衰落信道传输特性的研究
相关短句/例句
Multi-path fading多径衰落
1.For a wide band ground-air communication system with a low elevation antenna,the channel is of severe multi-path fading,whereas its characteristic is quite different from that of a terrestrial mobile communication channel.低仰角下的宽带地空通信信道存在严重的多径衰落现象,其信道特性与地面移动通信的情况很不相同,不适于采用正交频分复用技术,为此建立了低仰角下的宽带地空信道模型,并提出了一种正交码分复用与分组编码技术相结合的通信系统方案。
2.Multi-path fading is faced when wireless signal spreads in complicated wireless channel.无线信号在复杂无线信道中传播会产生多径衰落,利用分集接收技术,即在若干支路上接收相关性很小的载有同一消息的信号,通过合并技术将各信号合并输出,能达到在接收端大大降低深衰落概率的目的。
3.For its robust performance in combating multi-path fading, it is adaptable to use in the wireless mobile communication channel and is widely focused on.由于其在对抗多径衰落方面具有显著的效果,它适合于在无线移动通信信道下使用,因而得到广泛的研究。
3)multipath fading channel多径衰落
1.These parameters are difficult to obtain in multipath fading channels.在多径衰落信道下 ,这些参数是很难获得的 。
2.With this model,the blind multiuser detection and iterative algorithm of MC-CDMA systems based on subspace projection are studied in the multipath fading channel.仿真结果表明,检测器具有较强的抑制多址干扰和抗多径衰落的能力,并且能快速收敛。
4)anti-multipath fading抗多径衰落
5)multipath fading channels多径衰落信道
1.The bit error rate(BER) performances of two kinds of multiple access differential chaos shift keying(MA-DCSK) systems over multipath fading channels are investigated.研究了两种多址差分混沌键控(Multiple access differential chaos keying,MA-DCSK)通信系统分别在瑞利以及莱斯多径衰落信道下的误码率(Bit error rate,BER)性能。
2.The demodulation performance of OFDM systems in multipath fading channels was improved with an algorithm utilizing a feedback loop based on adaptive Wiener deconvolution.为改进正交频分复用(OFDM)系统在多径衰落信道下的解调性能,提出了基于自适应Wiener反卷积滤波反馈环路的接收算法,对多径衰落信道进行白化处理,使处理后的信道噪声接近于加性高斯噪声(AWGN)。
3.A novel Discrete Wavelet Packet Modulation(DWPM) system based on Fractionally Spaced Equalizers(FSE) and the Maximum Likelihood(ML) algorithm is studied for multipath fading channels.在多径衰落信道下,提出了一种基于ML的新型离散小波包调制系统。
6)multipath fading channel多径衰落信道
1.A fast and reliable technique with high performance for timing and frequency synchronization of multiple-input multiple-output(MIMO) orthogonal frequency division multiplexing(OFDM) system is proposed in multipath fading channel.利用所有发送天线同时发送的移位正交chu序列对已有的定时和频偏估计算法加以改进,提出了一种在多径衰落信道下具有高精度的快速多入多出-正交频分复用(MIMO-OFDM)系统定时和频偏估计新方法。
2.In multipath fading channel, the bit error rate (BER) performance of orthogonal frequency division multiplexing (OFDM) system using frequency domain differential detection (FDDD) is analyzed, the closed form expression of BER performance of FDDD is obtained.在多径衰落信道条件下,分析了符号间干扰对频域差分正交频分复用系统误码率性能的影响,得到了误码率的解析表达式,分析和仿真的结果表明,频域差分的误码率性能受到符号间干扰的影响,但在不同的信道条件下,符号间干扰对系统性能的影响程度也有不同。
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