聚焦大型船载两维机相扫相控阵雷达大动态条件下的高精度测量问题,提出一种基于天线阵面安装捷联惯导直接感知阵面姿态的方法,建立相应波束控制、角度测量的数学模型,并实现了基于最小二乘法的高精度动态标校。经海上动态环境下应用验证,该方法系统角度测量精度优于0. 2 mrad,实现相控阵雷达大口径天线大动态下的高精度测量。

Focusing on the problem of high-precision measurement under the wide dynamic range conditions of large-scale shipborne two-dimensional scanning mechanism-phased array radar, a method is proposed based on the installation of strapdown inertial navigation system (SINS) on phased array antenna to measure its attitude directly, establishes a mathematical model of corresponding beam control, angle measurement, then finished the dynamic calibration based on the least squares algorithm. Through the verification of practical application, the angle measurement accuracy of this method is better than 0. 2 mrad, which realizes high-precision measurement under large-aperture, wide dynamic range phased array radar.

TN958