信道矩阵 meaning in English
channel matrix
Examples
- This system characterized with good anti - multipath performance and low complexities when the channel matrix extending technique or overlap - adding technique and minimum mean square error equalization are employed
当采用信道矩阵扩展技术或重叠相加技术，并采用最小均方误差均衡时，该系统有着良好的抗多径性能和较低的计算复杂度。 - Then this new model is disscused in detail and is extended to some more common tv dispersive channels . in the following chapter 5 , we do much effort to research the methods of blind equalization and identification of tv dispersive channels based on the proposed dt canonical model
首先对间接盲均衡方法，提出了对时不变信道矩阵的子空间营辨识算涪和可以消除误差传播效应的两级盲辨识算法，然后给出了一种直接盲均衡方法。 - Abstract : by comparing the channel capacities hetwem orthogonal space - time block coding and multi - antenna array system over rayleigh fading channel , some capacity loss for orthogonal space - time block coding is obtained , which is a function of the code rate , the rank of channel matrix and the number of transmitter and receive antennas , although the system of orthogonal space - time block codes is simple and easy to implemented . if is also shown that there is no capacity loss only if both the code rate and the channel matrix rank are all one
文摘:在研究瑞利衰落条件下正交空时分组编码信道容量的基础上，将其与多发送多接收天线系统的信道容量进行了比较.比较结果表明，正交空时分组码虽编码简单，易于实现，但在信道容量方面存在较大的损失，损失的程度与编码码率、信道矩阵的秩及收发天线数等因素有关.进一步研究表明只有当编码码率和信道矩阵的秩都为1时，才没有信道容量的损失 - Firstly , a new joint filterbank precoders and decision feedback equalizers structure is proposed , and the corresponding optimization result based on the maximal mutual information criterion is derived . secondly , the concept of dt canonical model is proposed , which is very suitable for the task of blind signal processing based on the second - order statistical of the observations . thirdly , the methods of blind equalization and identification of the tv dispersive channels are researched systematically based on the proposed dt canonical model , and a subspace blind identification algorithm of the time - invariant channel matrix is developed
本文创新性的成果在于：提出了预编码-判决反馈联合均衡系统结构，并从理论推导得出了对应的最大互信息量最优化设计结果；首次提出了时变色散信道的离散正则模型概念，该模型适宜于利用观察数据的二阶统计量进行盲信号处理；基于离散正则模型对时变色散信道进行了系统的盲均衡和盲辨识方法研究，提出了对时不变信道矩阵的子空间盲辨识算法；针对误差传播效应问题，提出了可以消除误差传播效应的两级盲辨识算法；提出了基于离散正则模型的直接盲均衡算法；提出了基于特征恢复思想的神经网络直接自适应盲均衡算法。 - The authors discuss the statistical distributions of multiple - input multiple - output mimo channels over flat rayleigh fading via the order statistics analysis . simplified expressions are derived for expectations of the vector energies when the column or row number is equal to 1 and 2 , which is followed by the upper and lower bounds when the antenna number at one side approaches infinite
以顺序统计量分析rayleigh平坦衰落mimo信道矩阵各向量能量的分布特征，给出其各阶矩公式以及列行数为1和2时行列向量的能量期望值的简洁表达式，并由此推导出信道矩阵的单边维数趋于无穷时行和列向量能量期望值的上下界。