Abstract: It becomes more difficult to precisely align the radar array with the reference mounting surface of plane as the decrease of radar antenna array. A complete measurement scheme is given and a measurement system is constructed to solving the attitude measurement of small antenna array surface that installed on the airplane. According to the measurement data with gross error, a robust selecting weight iteration algorithm with initial value is proposed on the fundamental theory of tolerance estimation. The accuracy of the algorithm is verified, and the processing results are satisfactory. The algorithm has been successfully applied to the position measurement of airborne radar antenna array, and it can also be widely used in the installation and calibration of other weapon systems.

Key words: ntenna array, attitude, selecting weight iteration algorithm, robust

摘要： 随着雷达天线阵面的减小，雷达阵面与飞机基准安装面准确安装难度变大。针对机载雷达小天线阵面安装姿态测量问题，给出了完整的测量方案，构建了测量系统；针对含有粗差的测量数据，在抗差估计的理论基础上，提出了具有稳健初值的选权迭代法，进行了算法精度验证，处理结果令人满意，已成功应用到机载雷达天线阵面位姿测量中，也可推广应用在其他武器系统安装标定任务中。

关键词: 天线阵面, 姿态, 选权迭代法, 稳健