阵列天线位置的不确定性会严重影响阵列天线的测向性能。在远场情况下,针对阵元时变阵列,提出了一种基于协方差矩阵聚焦的阵元位置误差校正的自校正算法。该算法能够对时变的阵元位置误差进行实时校正,并可对信源的来波方向准确估计,相比普通的近似分段估计,能更充分有效利用快拍数据,故参数估计精度更高。计算机仿真结果验证了该算法的有效性。 The uncertainty of the position of the array antenna can seriously affect the directional performance of the array antenna. In the case of far field, aiming at the time-varying array of array elements, a self-correction algorithm of array element position error correction based on covariance matrix focusing is proposed. The algorithm can correct the time-varying array element position error in real time, and can accurately estimate the incoming wave direction of the source. Compared with the ordinary approximate segment estimation, the algorithm can utilize the snapshot data more fully and effectively, so the accuracy of parameter estimation is more high. Computer simulation results verify the effectiveness of the algorithm.