文中对测量误差进行了简要的论述，分析了四象限光电池引入的系统误差和修正方法。
The system error introduced by the four-quadrant photocell and the error correction method are analyzed emphatically.
四象限脉冲修正方案由于没有准确的目标方位信息，会造成脉冲推力损失和脱靶量增大；
The four quadrant impulse correction scheme may lead to the losing of thrust and the increasing of miss distance, since this scheme cannot measure the exact target azimuth information.
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