盲信号处理 meaning in English
bsblind signal processing
Examples
- Research on the key technologies of blind signal processing
盲信号处理几个关键问题的研究 - Blind signal processing is a new orientation in the field of signal processing , it also has broad range of application in daily life
盲信号处理技术是最近一段时间兴起的一个新的研究领域，它在实际中有着非常广泛的应用，盲信号源分离是盲信号处理技术的一个研究方向。 - 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。 - We propose the joint filterbank precoders and decision feedback equalizers structure at first , by which the dispersive channel is equivallent into parallel independent flat fading subchannels such that the diversity gain of the receiver is increased . then we adopt the discrete - time ( dt ) canonical model to convert the problem of blind signal processing of tv dispersive channels into processing the time - invariant multi - channels model blindly , and discuss the problem of blind equalization and identification of tv dispersive channels based on this new model
第一种是采用滤波器组联合均衡方法将色散信道等价为一组独立的平坦衰落子信道，以提高接收机的分集增益；另外一种是提出采用离散正则模型将时变色散信道的盲信号处理转化为时不变多信道模型的盲信号处理，并针对该模型对时变色散信道的盲均衡与盲辨识方法进行了详细讨论。