其次，分别建立了雷达测量误差、初始对准误差和惯性元器件误差与导弹位置、姿态测量误差和目标位置测量误差的关系，并得到了其误差影响的方差表达式；

Then, a variance analysis method was used to analyze the seeker pointing angle error caused by airborne radar measurement noises, initial sensor errors and initial misalignment.

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建立了惯导系统(INS)初始对准的线性和非线性误差模型。

Linear and nonlinear error models for Inertial Navigation System (INS) initial alignment are established.

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同时，对系统初始对准的误差进行了分析。

And analyse the deviation of initial alignment.

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