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一问题概述具有比例导引规律的导弹,其雷达天线罩误差对系统性能影响的实质,在于导弹姿态运动的速率被耦合进导引头对真实视线角速度的测量之中。这导致了系统的阻尼下降、响应延迟甚至不稳定,影响了整个制导性能。天线罩误差是一个空间误差。它取决于天线罩、天线系统和弹体结构之间的复杂电磁作用,其结果就影响到天线方向性图、阻抗变化以及天线系统所敏感的目标视在视线方向的变化等等。后者便直接导致了导引头所力图跟踪的方向与目标所处的真实方向之间产生误差。这一误差,即所谓天线罩误差,一般说来它是一个复杂的两维函数,例如,在俯仰平
A Problem Overview The essence of the impact of radar radome error on system performance is that the rate of missile attitude movement is coupled into the seeker's measurement of the true line of sight angular velocity. This leads to a decrease in the damping of the system and an even delay in response delay, affecting the overall guidance performance. Radome error is a space error. It depends on the complex electromagnetic interaction between the radome, the antenna system and the projectile structure. As a result, it affects the antenna pattern, the change of the impedance, the change of the target apparent line of sight which is sensitive to the antenna system, and the like. The latter leads directly to the error between the direction the seeker tries to track and the real direction in which the target is located. This error, the so-called radome error, is generally a complex two-dimensional function, for example,