由于馈电误差的影响，相控阵天线的指向精度降低，旁瓣电平恶化，抗干扰能力下降。
Due to the effect of feeding error on antenna's radiation performances, which causes the degradation of the sidelobe level, the pointing accuracy and the anti-jamming capability of phased arrays.
试验结果表明，所提方法使 天线能维持高指向精度。
Test result illustrates that the proposed method can make antenna keep high pointing precision.
对指向跟踪误差进行了分析，并采用软件和硬件两个方面进行了误差消除设计，提高了天线的跟踪速度和指向精度。
Based on analyzing the system pointing and track error, software and hardware correction measures are designed, which improve the antenna track velocity and pointing accuracy.
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