ID 原文 译文
53497 本文方法不需要对耦合传输线进行解耦，具有简单、精确、高效等特点，算例结果表明了本文方法的有效性。 Without decoupling calculation of the coupled transmission lines, this method is simple and accurate. The example given shows the effectiveness of the method.
53498 针对长期演进系统中的下行信道估计问题，首先介绍了常用的线性最小均方误差算法在频域和时域信道估计中的应用。 This paper considers the channel estimation in the long term evolution (LTE) downlink system. We introduce the linear minimum mean squared error (LMMSE) estimation algorithm which is used in frequency domain and time domain.
53499 其次对于该算法复杂度过高的问题提出了使用矩形模型、加窗等的简化方案， Following this, we propose some methods like mismatched model or sliding window.
53500 这样就避免了过于繁琐的信道相关矩阵的计算以及大量数据的存储。 The proposed method reduces the complexity of LMMSE algorithm in avoiding the complicated calculation in channel correlation matrix and a large number of data to be saved.
53501 最后针对算法简化后存在的性能损失，提出了一种改进的信道估计算法，通过增加虚拟导频、保留延时帧等技术来提高算法性能。 At last, we use added pilot, pre-subframe and post-subframe data to improve the estimation performance.
53502 仿真结果表明，本文提出的改进算法不仅拥有良好的信道估计性能，同时具有较低的实现复杂度。 Simulation results show that the proposed methods can significantly improve the system performance in low complexity.
53503 根据线性分组码相关特性和矩阵分析的原理，提出一种对数字通信系统中交织进行检测的方法。 The paper proposes a method for interleaver detection based on the correlation characteristic of linear block codes and matrix analysis.
53504 首先建立了交织检测识别模型，通过求解矩阵标准形的秩分析其是否随矩阵维数增大而成比例增大，从而判定有无交织器，实现交织的检测。 In the detection, the recognition model is established first, and the rank of matrix standard form is calculated. The interleaver then can be detected by judging whether the rank changed with the dimensions of matrix.
53505 仿真结果表明，该检测方法在误码率不大于10-3 时，能达到100% 的识别概率，具有较高的容错性能。 Finally, the simulation results shows that the proposed method is highly robust to the bit errors, and almost 100% identification probability can be obtained for the bit error rate (BER) lower than 10-3.
53506 本文提出了多输入多输出系统中频率选择性衰落信道下的一种联合迭代检测和 LDPC 译码的算法，采用因子图的模型将检测器和译码器融合到了一个框架中， The paper propose a joint iterative detector and LDPC decoder algorithm in frequency selective multiple-input multiple-output system and combine the detector and decoder into a framework based on factor graph.