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针对天线组阵系统中的时延估计问题,在基本互相关算法的基础上提出一种基于互功率谱相位法的多天线时延估计方法。该算法具有互功率相位谱稳健,计算简洁的特点。同时结合各天线几何位置与时延关系,融合各天线的数据,使得该算法能够估计多天线的相对时延差。仿真结果表明该算法具有优越的参数估计性能。
Aiming at the problem of time delay estimation in antenna array system, a multi-antenna time delay estimation method based on cross power spectrum phase method is proposed based on the basic cross-correlation algorithm. The algorithm has the characteristics of stable phase spectrum and simple calculation. At the same time, combining the geometrical position of each antenna with the delay, the data of each antenna are merged so that the algorithm can estimate the relative delay difference of multi-antenna. Simulation results show that the algorithm has superior performance of parameter estimation.