【摘要】 在简要介绍OFDM系统的基础上,提出了一种将卡尔曼滤波运用于OFDM系统的自适应天线阵列方法,理论分析并计算机仿真了系统误码率性能.结果表明文中提出的自适应天线阵列在消除OFDM系统同频干扰、提高系统接收性能方面显示出良好的性能.更多还原

【Abstract】 Orthogonal frequency division multiplexing (OFDM), which has been widely used in the wire and wireless communication systems, is a promising technique in future wireless communications for its good performance in combating multipath fading. Based on the analysis of the basic OFDM system, an adaptive antenna array with Kalman algorithm of updating weights of antenna arrays in the frequency domain is presented in the paper. Theoretical analysis and computer simulation results show that the adaptive antenna array with the proposed algorithm has good performance in suppressing co-channel interference and can improve the receiving performance of the system.更多还原