利用该模型，推导出了在两点源作用下PRS角度测量的解析表达式。
Based on this model, the analytical expression for Angle measurement by the PRS is deduced under the interaction of dual sources.
给出了干涉仪测量这类两点源信号中的主信号入射角的通用数学表达式。
Generel mathematical expression on incidence Angle of major signal in such signals with the interferometer is presented.
理论研究表明，两点源信号幅度不相等时，脉冲积累后的导引头输出指向大功率源。
Theoretic study shows that the seeker points to the bigger power source via pulse accumulation when the dual sources have different amplitude.
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