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本文分析了多径环境下 OFDM的信号特征 ,提出利用 OFDM的帧同步信息作为条件 ,应用特征结构法 (即 ESPRIT及 MUSIC算法 )和伪数据相关矩阵方法估计信号的波达方向 ,进行多目标信号分辨。理论分析和计算机仿真实验均表明了这种方法在 OFDM系统目标识别、信号分辨中是可行的
In this paper, the signal characteristics of OFDM in multipath environment are analyzed. By using the frame synchronization information of OFDM as the condition, the direction of arrival of the signal is estimated by the method of feature structure (ESPRIT and MUSIC) and the pseudo-correlation matrix method, Distinguish. Theoretical analysis and computer simulation show that this method is feasible in OFDM system target identification and signal discrimination