【摘要】 通过分析研究了在 OFDM的频率选择性多径衰落的信号环境下进行 DOA估计的方法 ,针对于正交频分复用 (OFDM)信号的 DOA估计 ,提出了利用 OFDM信号的共轭循环相关等特性 ,对输出信号矩阵进行零点预处理 ,采用 ESPRIT和 MUSIC方法估计信号的 DOA.理论分析和计算机仿真实验均表明了这种方法的有效性更多还原

【Abstract】 In light of the array signal direction estimation of OFDM,this paper analyses the estimation method of OFDM signal’s DOA in the selective frequency multi path fading channel.The idea of using ESPRIT and MUSIC to estimate DOA of signal according to the features of conjugate cyclic in OFDM signal and putting zero point pretreatment into output signal of receive antenna has also been brought forward in this paper.Theoretical analysis and computer simulations show this method is effective.更多还原