【作者】 陈熙； 杨坚；

【Author】 Xi CHEN,Jian YANG Department of Automation,University of Science and Technology of China,Hefei,China

【机构】 中国科学技术大学自动化系；

【摘要】 针对带虚载波的OFDM无线通信系统的同频干扰抑制问题,本文通过分析传统特征分解算法在应对同频干扰较强时,通信效果不理想的原因,给出了一种基于误差矩阵的自适应波束形成算法。首先将特征分解问题转化为非线性最优化问题,然后在此基础上使用误差矩阵,对信号的相关矩阵进行重新估计,最终求解出问题的最优权向量。最后,通过仿真验证了本文所给出的算法是有效性。更多还原

【Abstract】 For the problem of co-channel interference cancellation in orthogonal frequency division multiplexing (OFDM) communication systems with virtual carriers, we propose an adaptive beamforming algorithm based on error matrix. After formulating the beamforming problem as the generalized eigen-decomposition problem, we use error matrixes of the signal correlation matrix to improve the corresponding cost function. Then an adaptive beamforming algorithm is proposed for estimating the optimal weight vector. Finally, the simulation results show the performance of the proposed algorithm.更多还原