天线罩相位不一致性误差分析及补偿方法研究

Research on error analysis and compensation method of phase inconsistency in radomes

针对干涉仪测向系统中天线罩相位不一致性导致的测向不准问题,提出一种最小二乘曲线拟合分频段相位补偿方法。通过计算不同频率、不同来波方向的相位测量值与理论值误差,利用最小二乘的曲线拟合算法,准确获取相位误差值,从而进行相位补偿,最后通过仿真验证了该方法的有效性。

A method for phase compensation in frequency bands using least squares curve fitting is proposed to address the issue of inaccurate direction finding caused by phase inconsistency in antenna radomes for interferometer direction-finding system.The phase error values are accurately obtained for phase compensation by calculating the errors between the phase measurement values and theoretical values for different directions of arrival and frequencies,and utilizing the least squares curve fitting algorithm.Finally,the effectiveness of the method is verified through the simulation.