Multi-element array photoelectric detector is the core devices to form a photoelectric detection target with a large field of view. This photoelectric detection target brings about the problem of uneven detection sensitivity distribution in the detection screen. To improve the uneven detection sensitivity of this photoelectric detection target, this paper analyzes the distribution law of the uneven detection sensitivity of the photoelectric detection target using the multi-element array photoelectric detector, dissects the main factors affecting the detection sensitivity according to the photoelectric detection principle, establishes the calculation model of detection sensitivity of the photoelectric detection target in the different detection areas and proposes a method to improve the detection sensitivity by compensating the gain of each unit photoelectric detector. The analysis of simulation and experimental results show that the proposed method of photoelectric detection target can effectively improve the output signal amplitude of the projectile under the certain detection distance, in particular, the output signal amplitude of the projectile is significantly increased when the projectile passes through the detection blind area. The experimental results are consistent with the simulation results, which verify the effectiveness of the proposed improvement method.

多元阵列光电探测器是构成大视场光电探测目标的核心器件。这种光电检测目标带来了检测屏内检测灵敏度分布不均的问题。为提高该光电检测靶的不均匀检测灵敏度，本文分析了采用多元阵列光电检测器的光电检测靶不均匀检测灵敏度的分布规律，根据光电检测剖析了影响检测灵敏度的主要因素。原则，建立了光电探测目标在不同探测区域的探测灵敏度计算模型，提出了通过补偿各单元光电探测器增益来提高探测灵敏度的方法。仿真分析和实验结果表明，所提出的光电探测目标方法可以有效提高一定探测距离下弹丸的输出信号幅度，特别是弹丸通过时，弹丸的输出信号幅度显着增加。检测盲区。实验结果与仿真结果一致，验证了所提改进方法的有效性。仿真分析和实验结果表明，所提出的光电探测目标方法可以有效提高一定探测距离下弹丸的输出信号幅度，特别是弹丸通过时，弹丸的输出信号幅度显着增加。检测盲区。实验结果与仿真结果一致，验证了所提改进方法的有效性。仿真分析和实验结果表明，所提出的光电探测目标方法可以有效提高一定探测距离下弹丸的输出信号幅度，特别是弹丸通过时，弹丸的输出信号幅度显着增加。检测盲区。实验结果与仿真结果一致，验证了所提改进方法的有效性。