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研究了雷达寻的导弹的雷达天线罩厚度得不到正确控制时对雷达寻的误差距离的影响。首先提出了雷达天线罩误差斜率及其引入结构图中的次序。其次，提出了参数的标准值，并在假定系统为线性系统时用该值进行了稳定分析，同时介绍了应用协方差分析的方法。仿真结果为：１）用原来的３阶模型与这次的５阶模型结果比较，后者给出的结果更严格；２）假定各种参数在飞行中固定不变，示出了雷达天线罩误差斜率与雷达寻的误差距离的关系，明确了参数变化产生的影响；３）证明了雷达天线罩误差斜率阶梯及正弦波变化对雷达寻的误差距离的不同影响。
The influence of the radars seeking error distance when radar seeker’s radar radome thickness can not be properly controlled is studied. Firstly, the error slope of radar radome and the order of its introduction structure are proposed. Secondly, the standard value of the parameter is put forward, and the value of the parameter is analyzed stably when the system is assumed to be a linear system. At the same time, the method of applying covariance analysis is introduced. The simulation results are as follows: 1) The results of the third-order model are more rigorous than the fifth-order model of this time. 2) Assuming that the various parameters are fixed in flight, the radar radome The relationship between the error slope and the error distance of the radar is found, and the influence of the parameter variation is clarified. Thirdly, the different influence of the error gradient of the radome and the sine wave on the error distance of the radar is proved.