selective channel
英 [sɪˈlektɪv ˈtʃænl]
美 [sɪˈlektɪv ˈtʃænl]
网络 性通路
双语例句
- By analyzing the relationship between basis expansion model ( BEM) and Doppler spectrum, the authors propose a scheme based on fractional BEM for the estimation of doubly selective channel parameters.
通过分析复指数基扩展模型（BEM）与多普勒扩展频谱之间的关系，提出一种基于分数倍基扩展模型的双选信道估计方法。 - An Improved Iterative Decoding Algorithm for V-BLAST in the Frequency Selective Channel
频率选择性衰落信道中V-BLAST系统的改进概率译码算法 - Modified MIMO channel estimation algorithm based on superimposed training sequence was proposed for the frequency selective channel.
针对提高无线信道的传输性能，提出了改进的基于叠加训练序列的MIMO信道估计算法。 - Objective To study the effects of irradiation and W 11 a 12, a kind of repair promoting drug, on anion selective channel in membranes of mouse peritoneal macrophage.
目的探讨电离辐射对小鼠腹腔巨噬细胞阴离子通道活动的影响及康复新对其的作用。 - Demonstrating the feasibility using CS ( Cyclostationary) algorithms to estimate frequency offset in selective channel.
验证了把CS（周期平稳过程算法）应用于选择性信道下进行频偏估计的可行性。 - A two-ray model is used for the frequency selective fading channel.
频率选择性衰落信道采用了两径模型。 - The time-and frequency-selective fading channel is so-called doubly selective fading channel.
同时具有时间和频率选择性衰落的信道，我们称之为双衰落信道。 - In order to improve performance of this method over frequency selective channel, we average over several symbols.
并针对频率选择性信道采用了多符号平均改善算法性能。 - Frequency selective channel is one of the important problems in new generation mobile communications, and equalization technologies are applied to combat the influence of this channel.
在新一代移动通信系统中，频率选择性信道是系统所要面对的一个关键问题。 - The new coded strategy can achieve full space-time-frequency diversity over frequency selective fading channel.
在频率选择性信道中，新编码策略可以获得空时频全分集增益。 - A new estimation method based on the superimposed ( implicit) training was proposed for the frequency selective channel. By exploiting the uncorrelation between the training and the information sequences, accurate channel parameters could be obtained without loss of bandwidth.
提出了新的基于隐训练序列的频率选择性信道估计方法，利用训练序列与信息序列的不相关特性，在没有带宽损失的情况下估计出信道参数。 - In this dissertation, the estimation algorithms of time-varying frequency selective channel in modern wireless communication systems including WCDMA uplink, WCDMA downlink with space time transmit diversity and MIMO system are investigated.
本文主要研究在现代无线移动通信系统中如何估计同时存在频率选择性和时间选择性衰落的信道，包括WCDMA上行链路，采用双天线空时发射分集的WCDMA下行链路和MIMO系统。 - In a Multi-Carrier CDMA system, to receive signals through frequency selective channel, the receiver must take advantage of equalization.
多载波CDMA（MC-CDMA）系统中信号经过频率选择性衰落的信道时，接收端需要采取一定的均衡技巧。 - This paper investigates Multi-Input Multi-Output ( M1MO) time and frequency doubly selective channel estimation using polynomial interpolation method for data block transmissions.
该文主要研究了数据分组传输方式下，基于导频符号辅助调制（PSAM）的多输入多输出（MIM（））时间一频率双选择性信道的信道估计问题。 - In this paper is investigated the issue of equalization for linear SISO time selective fading channel.
本文研究了线性单输入单输出（SISO）时间选择性衰落信道的均衡问题。 - Then we establish the model of a frequency selective radio channel.
之后，建立了频率选择性衰落的宽带信道模型。 - Based on the characteristic of multi-path frequency selective channel, the algorithm combines rapid table lookup and Lagrange-multiplier method to iteratively search the optimal bit allocation scheme.
算法根据多径信道选择性衰落的特性，结合查表法和拉格朗日乘子的混合迭代搜索法，最优地分配各个子载波的传输比特数。 - A novel equalization method of OFDM over doubly-selective channel
一种针对双衰落信道OFDM的新均衡算法 - However, multi-antenna and multi-code transmission in frequency selective fading channel results in severely co-channel interference and inter-code interference.
然而，频率选择性衰落信道下多天线和多码扩频传输会产生严重的码间干扰和共信道间干扰。 - For integer frequency offset estimation, we analyze a sequence auto-correlation based algorithm, and extend the algorithm into frequency selective channel case.
对于整数频偏估计，分析了一种基于序列自相关的算法，并将该算法推广应用到频率选择性信道中； - In the background of MIMO frequency selective channel estimation, a time delay domain particle filtering is suggested.
以MIMO频率选择性衰落情况下联合信道估计与信号检测为背景，提出了一种时延域粒子滤波。 - Joint coding technology to send data stream by treating joint coding done to improve the system diversity gain, cyclic delay each antenna technology to transmit data on the cyclic shift, equivalent exacerbated the frequency selective channel excavated frequency diversity system.
联合编码技术通过对待发送数据流做联合编码处理来提高系统分集增益，循环延迟技术对每个天线上的发送数据进行循环移位，等效加剧了信道的频率选择性，挖掘了系统的频率分集。 - We proposed a joint space-time diversity receiving method for DS-CDMA system to solve the problem of the space-time processing of the direct sequence spread spectrum ( DSSS) signals in the frequency selective fading channel.
本文针对DS-CDMA系统，提出了一种直接序列扩频信号的空时二维联合分集接收方法，有效地解决了频率选择性衰落信道下直扩信号的空域和时域的联合接收处理问题。 - Technically, in condition of dynamic frequency selective channel the deeply fading of channels would result in remarkable decrease of the input SNR of equalizer and lead to severe error propagation, consequently restrict the improvement of the performance of the equalizer.
从理论上推导出在动态频率选择性衰落信道条件下，信号的深度衰落会导致均衡器输入信噪比显著下降，使得均衡器产生严重的误码扩散，从而限制了均衡器性能的提高。 - In high mobility OFDM systems, wireless channel becomes fast time-variant frequency selective channel.
在高速移动环境下，信道变成了快时变的频率选择性衰落信道。 - Also, new expression of SER of MQAM in frequency selective fading channel with RAKE combining is obtained, and throughput performance adaptive MQAM with RAKE receiver in multipath Rayleigh fading channel is analyzed.
本文还得到了MQAM在频率选择性衰落信道中采用RAKE合并新的误码率表达式，并对采用RAKE接收的自适应MQAM在多径瑞利衰落信道中吞吐量性能进行分析。 - In this way, OFDM technology converts a frequency selective channel into a non-frequency selective channel so that the Inter-Symbol Interface ( ISI) caused by multiple paths and the multipath fading can be avoided.
这样，OFDM技术将频率选择性衰落信道转化为若干个频率非选择性衰落信道，能有效地抵抗多径引起的符号间干扰（ISI）和多径衰落。 - A simulation flow for indoor multiple-antenna flat fading channels is summarized, and the simulation method for the frequency selective fading channel is briefly introduced.
总结了室内多天线平坦衰落信道的仿真流程，简单地介绍了频率选择性衰落信道的仿真方法。 - OFDM can resist frequency selective channel by converting it to flat fading channel in frequency domain. MIMO can use the space-multiplexing diversity efficiently to boost the system throughput.
OFDM技术将频率选择性衰落信道在频域上转换为平坦衰落信道，可以有效的对抗多径衰落的影响；MIMO技术利用空间复用增益能够有效的提高系统的传输速率。 - MIMO technique can be used more efficiently combined with OFDM/ SC-FDE in multipath frequency selective fading channel.
通过MIMO技术与OFDM/SC-FDE技术结合，可以使得MIMO技术更方便的应用于频率选择性衰落的多径信道中。